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Resolved Issues
Learn about the issues fixed in this release for MX Series routers.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
Authentication and Access Control
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RADIUS authentication is failing when Challenge Token is entered. PR1862203
Class of Service (CoS)
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CoS configured on logical interface does not work on Junos platform when CoS wildcard configurations applied using groups. PR1872595
EVPN
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RPD core file generates on Junos OS 22.2R3-S4. PR1841965
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Few seconds traffic loss during previous DF coming back with EVPN-VPWS non-revertive DF preference feature enabled. PR1851659
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Using SRv6 or MPLS IPv6 encapsulation over EVPN instances causes IPv4 packets to be dropped. PR1857154
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Traffic drops observed in EVPN-VXLAN using ARP NDP entries. PR1859778
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EVPN/ETREE not learning MAC's on root. PR1862755
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Junos OS and Junos OS Evolved: In an EVPN environment, receipt of a specifically malformed BGP update causes RPD crash (CVE-2025-52949). PR1863170
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'TLV type 00000052 not supported on IFL gr' seen repeatedly in syslog for EVPN routing-instance configured with gr- ifls. PR1870365
Forwarding and Sampling
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Incorrect color-aware srTCM marking with yellow packet loss priority. PR1837840
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Junos OS: IPv6 firewall filter fails to match payload-protocol (CVE-2025-52951). PR1844796
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MIB2D will see 100 percent CPU utilization due to MIB2D walk fail. PR1856854
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MIB2D stucked at 100 percent on MX10003. PR1859894
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System becomes unresponsive or crash due to frequent filter changes in a scale scenario having mib2d process in use. PR1872347
General Routing
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Multiple J-UKERN core files might be generated during the sanity test. PR1641517
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Extremely fast interface flaps in MPC10E line-card causes cpu to hog which leads to fpc reboot. PR1727066
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Error message may occur once in a while with full scale when
clear bgp neighbor allwith all the services like EVPN, vrf etc being present. PR1744815 -
MPC10E: Support of G.8275.1 PTP Hybrid mode with speed 400G PR1767930
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[./sw-vale-mx-indus] [generic] MX10004 :: LC480 line card crashed with reference to posix_interface_abort () at ../src/pfe/platform/linux/posix_interface.c:2729. PR1784824
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Speed change between 1G and 10G with traffic in high-priority queue on ports causes the link to go down. PR1807277
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FPC crashes due to race condition on MX Series platforms with LC480. PR1809644
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Tunnel source and destination in the same broadcast domain lead to traffic drop. PR1811488
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On MX10K4, MX10K8, MX10K16 systems, in some cases, a SPMB PFE (spmbpfe) core file might be seen when system is going down. PR1817097
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Complete packet loss will be observed for the inter-VLAN traffic in EVPN-VXLAN CRB scenario. PR1820830
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Protocol traffic drops were seen in the network for any configuration change in the protocol. PR1823601
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The rpd crash is observed during upgrade or restart. PR1826194
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TAG and UNTAG bridge interface bandwidth-limit policer are not equal traffic.PR1827843
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Counters not getting cleared at the PFE level when clear ddos-protection protocol statistics is executed. PR1830188
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FPC crash will occur when modifying or deleting a filter instance on Junos OS platforms .PR1830706
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The RPD crashes after executing
show krt error-statistics errorno X.PR1834859 -
Missing telemetry data for FRUs when subscribed to /components/component. PR1837761
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High FPC CPU utilisation and local MAC learning failure in EVPN-MPLS scenario due to rapid MAC moves. PR1838335
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Subscriber's session created using the dynamic profile leads to rpd crash. PR1838354
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The MPC7/MX2K-MPC8E/MX2K-MPC9E line cards of the FPC gets stuck into HOST LOOPBACK WEDGE state post pfe-reset action triggered by any PFE major/fatal errors. PR1839071
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Traffic loss due to tunnel establishment failure in HA setup.PR1839090
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Resource errors observed on PFE slices when egress is logical tunnel. PR1839265
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The commit error is seen in backup RE on MX Series platforms. PR1839362
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Tactical Traffic Engineered load sharing utilization displays incorrect percentage on MX Series platforms. PR1840503
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Major alarm "Host 0 bme1 : Ethernet Link to other RE Down" or log "CHASSISD_LINK_RE_ERROR_RECOVER: RE_TO_ORE iface recovery: bme1 is down" is seen when backup RE is removed. PR1840810
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PCP mapping fails for specific internal IPv4 addresses in DS-lite scenario. PR1841231
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ISSU fail for the MPC2E/3E NG FPC result in FPC crash. PR1841400
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The
show chassis synchronization extensivecommand output shows syncE is locked to both primary and secondary sources after switching between primary and secondary sources. PR1841695 -
MGeo Telemetry - Added cluster name and generation number to subsystem health sensor tree. PR1842439
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Unable to console to VNF using a non-root user from Juniper Device Manager. PR1842451
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Junos OS and Junos OS Evolved: Receipt of a specifically malformed DHCP packet causes jdhcpd process to crash (CVE-2025-30648). PR1842682
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Incorrect MTU value in the ICMP next-hop MTU field, regardless of the actual MTU of the outgoing interfaces. PR1842744
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Inline IPsec tunnel traffic forwarding stops when destination IP prefix is moved from user-defined Virtual routing and forwarding (VRF) to default VRF or from default VRF to user-defined VRF. PR1843098
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The BMP rib-in-post route withdraw feed is not being generated towards the BMP station when an import policy is configured. PR1843374
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Memory leak when deactivating/reactivating routing instances with vrf-table-label. PR1843627
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vlan tagging in Q-in-Q is not handled correctly over EVPN-VxLAN. PR1843817
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Memory leak is seen with rpd task blocks "nhlib_nexthops_004". PR1844160
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Stale MAC-IP entries are not cleared in an EVPN-VXLAN scenario when
encapsulate-inner-vlanordecapsulate-accept-inner-vlanor both configuration statements are present. PR1844623 -
High heap memory caused MX-SPC3 PIC to go offline. PR1844731
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Lane laser temperature value is incorrectly displayed in the snmp query. PR1844751
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Subscribers unable to connect in GNF setup. PR1844934
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Unnecessary trace log files related to licenses are generated. PR1845079
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Interface not added back to AE bundle with multiple changes in single commit. PR1845370
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Traffic drop is observed for IPv4 /32 LDP prefixes advertised over BGP-LU when BGP sharding is configured. PR1845425
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Incorrect warning message is seen post hyper-mode configuration change and mismatch of hyper-mode between FPC and Routing Engine impacts performance. PR1845497
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PTP/SyncE config on Junos fusion port causes crashes. PR1846115
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Memory leak is detected with rpd task blocks "rpd-trace". PR1846294
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When
set chassis redundancy failover on-re-to-fpc-staleis configured unexpected master Routing Engine switchover will be seen if backup Routing Engine reboots resulting in traffic disruption. PR1846557 -
ASLA configuration creates ISIS/subTLV 3 with empty value. PR1846610
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Misleading warning when trying to zeroize just one Routing Engine on a dual Routing Engine device. PR1846914
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Some ports take longer than others to come back online when multiple ports experience simultaneous flap. PR1847378
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Core being generated for some processes while using license feature. PR1848160
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Support FW_Continue with HW Segmented Filters on AFT TRIO platform. PR1848740
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Junos OS: A low-privileged user can disable an interface (CVE-2025-52963). PR1848754
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Routing-services enabled on PPPoE dynamic profile causes subscriber login failure for new subscribers. PR1848887
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Configuring BGP rib-sharding and generate route will cause rpd process to crash. PR1848971
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The SNMP mib walk for lldpConfigManAddrPortsTxEnable fails. PR1849307
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The bbe-statsd process crash due to malformed PFE packets. PR1849377
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Handling AE Child Members, VT port properties reset when Access Port is destroyed. PR1849952
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The dot1xd crash on MACsec enabled ports due to key length limit. PR1850387
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Host unreachable from the router with PPPoE when "routing-service" and "RPF-check" are enabled, and the route is learned via EBGP. PR1850562
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Packet duplication and flooding issues are seen when vpls bridge domain is configured on an aggregated Ethernet and label-switched interface across multiple line cards. PR1850604
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When BGP RIB Sharding is enabled, new BGP group/peer added gets stuck at Flags: Sync InboundConvergencePending. PR1850620
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Chassis MX304 going offline due to Power-cycle. PR1850857
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EX3400 Dot1x RADIUS accounting send incorrect value to the server for Acct-Input-Gigawords/ Acct-Output-Gigawords. PR1851299
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Next-hop APIs to support LDP stitching cases over BGP routes pointing to list of indirects. PR1851629
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The l2ald process crash is observed when same Type 5 MAC-IP received with same IP and different MAC. PR1852019
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With rib-sharding enabled, IPFIX exports wrong SrcAS / DstAS fields. PR1852278
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Memory leaks are seen in bbe-statsd process during the subscriber logout phase. PR1852532
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EVPN/VPLS protocol configuration through CLI is not allowed on device. PR1852905
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On BNG CUPS controller loss of subscriber state is observed when cluster node restarts. PR1853279
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Packet loss observed across multiple traffic items using SR profiles within the L3VPN. PR1853294
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Router flag is not getting set in Neighbor Advertisement message. PR1853868
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Devices fail to obtain an IP address when DHCP Security Option 82 is enabled. PR1854253
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The rpd gets struck with 100 percent CPU usage after enabling BGP RIB-Sharding. PR1854481
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The chassisd process crashes when
commitcommand is issued multiple times. PR1854658 -
IPv6 neighbor discovery with DHCP packet getting dropped when no-snoop option is enabled for DHCP Relay. PR1855624
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License is missed post system reboot. PR1855728
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IPv4 frameroutes with prefix length of less than /32 do not get applied. PR1855891
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During ISSU the repd experiences a process crash in the master Routing Engine during the image validation phase. PR1855947
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WAN Interfaces fail to receive hostbound traffic when OGE interface FIFO overflow error is detected. PR1855966
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Junos OS and Junos OS Evolved: When RIB sharding is configured each time a show command is executed RPD memory leaks (CVE-2025-52986). PR1856054
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Unable to ping IRB on the Spine when ping from the leaf after upgrade to the 22.2R3-S5 PR1856062
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The "Input errors" shows 0 even when the "Resource errors" in
show interface extensiveCLI command have non-zero number. PR1856231 -
Input traffic on physical interface increases in the fabric statistics count despite locality bias feature configured. PR1857225
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The chassisd process crash is seen after the device reboot when chassisd stalls after configuration commit. PR1857833
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The rpd process crashes when generate routes are configured in a rib-sharding scenario.PR1858032
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MX10008: After doing offline fpc, observing major alarms on FPC. PR1858079
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IPv6 link cannot be used for around 10 seconds after DAD finishing due to NS delay. PR1858741
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Route change is not synced after rpd restart due to rib-fib inconsistency. PR1858750
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A momentary drop in traffic is observed when changes are applied on multipath SR-TE LSPs. PR1860334
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When rib-sharding or update-threading are enabled, generated bgp traceoptions files become accessible only to root users. PR1860792
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The rpd crash due to overlapping flow route updates in a single transaction. PR1860888
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The authd process crashes when /etc/resolv.conf file is empty. PR1860913
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IPv6 Inline Distributed BFD sessions for ISIS fail to establish after applying CoS transmit-rate rate-limit configuration. PR1861238
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BGP PIC failover is taking longer than expected when IS-IS as an IGP enabled with LFA. PR1861451
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In BBE scenario the rebalancing event happens later than expected due to periodic rebalance interval miscalculation. PR1861619
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FPC will crash in MX10003 during the Master switchover to RE1 or Master set to RE1. PR1863091
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MAP-T translation is not working. PR1863280
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Link error reported on one Packet Forwarding Engine will also report error on other PFE. PR1863674
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Observing out-of-order packets when the TCP traffic gets passed over AE bundle and tunnelled via MPLSoUDP tunnel. PR1864237
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Due to race condition the FPC on MX Series platform crashes. PR1865576
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Traffic drop from subscriber will be observed when
rpf-checkconfiguration statement is enabled under subscriber dynamic-profile with static underlying VLAN interface. PR1865649 -
The vms logical interface(s) remains down when inline-jflow is configured in the system. PR1866570
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PPPoE subscriber login failures observed after interface flapping resulting in AC system errors on Junos MX Series platforms. PR1868007
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The rpd process crashes and asserts are seen due to memory leak. PR1868085
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CGNAT traffic is dropped when inactive mams interface in AMS due to an empty slot or defective SPC3 card in slot. PR1868509
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After IPv6 tunnel is up and the iked daemon is restarted, post clearing of the IKE SA, ping from one end to the other end is not working as expected. PR1869198
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Subscribers failed to establish DS-Lite softwires due to stale softwire entries. PR1869450
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Image validation fails during the Junos VM validation. PR1870082
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Link instability is seen on 4x10GSR and 40G-SR4 SFP modules from Finisar having high Rx output value. PR1870156
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RPD might crash when upgrading using no-validate. PR1870183
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Fragmented packets dropped in EVPN-MPLS scenario due to the IRB interface MTU limitation. PR1871420
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Filter-Based Forwarding (FBF) failed for over unicast IRB over AE on MX Series and EX Series platforms. PR1871698
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High memory and CPU usage due to unintended phone-home client activation. PR1871802
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The l2ald process crash is observed on non L2NG Junos OS platforms configured with "native-vlan-id" and "bridge-domains" on logical interfaces. PR1872280
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Packet loss or retransmissions observed on MX Series platforms using SFP-T transceivers. PR1872743
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The SPC3 card resets due to kernel memory exhaustion in MX Series platforms with highly scaled routing tables and inline active flow monitoring configured. PR1873938
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Transient traffic loss for CE in an EVPN MPLS setup with multi-homing. PR1874476
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IPSec and IKE SA will remain down and the traffic through IPSec tunnel gets impacted. PR1876271
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Wrong digest algorithm is used for ECDSA key based certificate requests using PKI. PR1876497
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IPsec-inside-IPsec tunnel establishment fails on MX Series platforms with SPC3 cards. PR1876801
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MPC10E: 1PPS measurement failed for class-B over 100GE to 100GE port combinations using SR4 optics. PR1878254
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FPC crash is seen on MX series when disabling AE IFL in mixed-speed configuration without enhanced-ip enabled. PR1880860
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The rpd crash would be observed when two separate next-hops in rpd map to the same next-hop-index in the kernel. PR1881012
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MX304 acting as an LNS saw an FPC restart and core dump in aft-trio after offlining a MIC. PR1885754
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snmp mib walk DomCurrentLaneAlarms does not show proper lanes Values in the latest builds. PR1886889
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LC480 - retransmissions seen on NON-JNPR SFP-T when close to IGP recommendations. PR1887864
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[MX304] Jack-out and Jack-in standby Routing Engine results in communication loss between the Routing Engines. PR1891577
Infrastructure
Interfaces and Chassis
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JUNOS MX | iflset stats not getting cleared after issuing
clear interfaces statistics allandclear interfaces interface-set statistics allCLI command. PR1741282 -
Incorrect speed assigned to 1G interfaces on MPC2E-3D-NG high-capacity line card modules. PR1824215
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Routing instance configuration statement for ICCP backup liveness detection. PR1850316
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The jpppd process crashes when subscribers frequently login/logout. PR1854387
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FPC process crash observed due to heap memory errors with Inline CFM and VLAN Normalisation. PR1856132
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Observing traffic loss on PS service interface after deactivate and activate VPLS/EVPN instance type. PR1858289
Layer 2 Ethernet Services
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JDHCPD core @ ce_lease_time_compare GenAVLTreeDelete GenAVLTreeEntryDelete. PR1835954
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DHCPv6 BLQ not working as expected. PR1839348
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DHCPv6 Renew from a dual-stack CPE may be ignored if DHCP server is using DUID type 3 (DUID-LL) and DHCPv6 binding doesn't exist. PR1843596
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AE member not able to discover lost LACP peer connection leading to traffic drop. PR1874126
Layer 2 Features
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The snmp mib walk on jnxVplsPwBindTable fails with vpls routing-instances having multiple mesh-groups. PR1806424
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A traffic outage is seen when disabling and enabling the LACP configuration. PR1850803
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On all Junos OS and Junos OS Evolved based platforms, deactivate and active operations are implemented on the master Routing Engine generates rpd core file on backup Routing Engine in rare case. PR1865782
MPLS
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Missing HELLO object in RSVP Hello messages after RE failovers in the NSR mode. PR1792192
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mgd timeout communicating with routing daemon rpd for 30 minutes during RSVP MBB event. PR1837770
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RSVP authentication check fails if the length of the authentication-key is sixteen characters. PR1850130
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The rpd process crashes due to memory exhaustion. PR1854623
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The "in-place-lsp-bandwidth-update" functionality does not work as expected. PR1854987
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Traffic loss will be observed when container-LSP with in-place-lsp-bandwidth-update configured. PR1857867
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RSVP-TE LSP path is not re-optimised to the path with best IGP metric. PR1859219
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The rpd with per-priority subscription configuration. PR1864823
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Traffic drop in LSP is due to link failure before protection signalling is processed. PR1866944
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BFD session failure causes LSP to go down and the inactive route remains in the routing table leads to traffic drop. PR1881906
Network Address Translation (NAT)
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The 'UI_CONFIGURATION_ERROR' error message is seen when a NAT rule-set has multiple rules. PR1873928
Network Management and Monitoring
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REST API doesn't work with passwords that includes the "%" character. PR1840232
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TCP session between syslog server and device remains in closed state. PR1843602
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The eventd memory leak on Syslog over TLS with unconfigured PKI certificate. PR1845058
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Unable to run event scripts for events: system_abnormal_shutdown/system_shutdown/system_reboot_event. PR1847814
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The eventd process crash occurs due to flooding of out of memory logs. PR1848106
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SNMPV3 Engine-ID does not update to MAC address as configured. PR1866948
Platform and Infrastructure
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An authentication failure occurs when the TACACS+ server detects an error in sending authentication response. PR1829031
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Traffic drops after link flap on active-active ESI setup with MAC pinning enabled. PR1846365
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The standby router goes into the error state when the switchover is performed. PR1847307
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The self-generated traffic on Junos OS platforms use the incorrect source IP with ECMP configuration. PR1849296
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SCFD incorrectly decodes 802.1q tag as the source IP address for suspicious DHCPv4 flows. PR1852259
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User root is shown as incorrect after power cycle of the device. PR1855393
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TCP listening sockets are not displayed correctly. PR1864027
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ARP packet drops seen if proxy-arp restricted is configured on an IRB interface. PR1865605
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An IPv6 neighbor solicitation packet is dropped at the ingress PE router when it is received with more than two VLAN tags. PR1874503
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FTP default mode changed from active to passive on Junos OS Release 24.2R2. PR1874525
Routing Policy and Firewall Filters
Routing Protocols
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Disabling the PIM interface underneath the
[edit protocols pim interfaces <intf-name>]hierarchy may still show PIM as still being UP instead of DOWN. PR1857699 -
The changes from instance-type DEFAULT_INSTANCE to others and vice versa will not be allowed. PR1663776
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"snmp-options backward-traps-only-from-established" for logical-system doesn't work properly. PR1813048
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rt_instance memory leak on bulk configuration changes. PR1832162
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BGP_PREFIX_THRESH_EXCEEDED warning message keeps flooding after accepted max prefix limit is reached. PR1838490
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BGP import policy does not process the next-hop statement. PR1839318
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Configuration check-out fails when applying "inet6.0 static route" with qualified-next-hop and interface settings. PR1839631
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RPD process crash observed with dynamic tunnel configuration with overlap in destination networks under APP based and NHB mode and rollback. PR1842654
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MVPN traffic does not recover after clearing forwarding-cache. PR1845087
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BGP stops advertising VPN routes to EBGP peer if static route-target-filter as local is configured. PR1845169
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Link State of IS-IS IPv6 adjacency is not updated after interface flap (Due to any reason). PR1847557
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The rpd crash on commit when configuring router-advertisement with DNS search label under 3 characters. PR1847811
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Executing a specific CLI command when asregex-optimized is configured causes an rpd crash (CVE-2025-30652). PR1848929
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The CPU for the rpd stuck at 100% on Junos OS platforms PR1848939
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Memory leak is seen when BGP is activated and deactivated. PR1849027
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BGP route still seen in routing table when route not available. PR1849202
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L3VPN routes are not advertised to peer when BGP sessions with route-target filter flaps. PR1849568
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Updating a source-file to load ROAs should be done by changing the name of the source file. PR1853025
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Junos OS and Junos OS Evolved: An unauthenticated adjacent attacker sending a valid BGP UPDATE packet forces a BGP session reset (CVE-2025-52953) PR1855477
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Memory leak is observed when "graceful-shutdown" is configured. PR1857801
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Incorrect subcode NOTIFICATION is sent when local interface is disabled for which multihop is configured for directly connected peer. PR1859020
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BGP queue deadlock on Junos/Junos OS Evolved/cRPD platforms leading to route advertisement failure and traffic loss. PR1860786
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The rpd crash due to memory corruption in PIM/MSDP network. PR1863470
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The rpd process will crash because of the memory leak. PR1864676
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Valid BGP routes in RIB are displayed with verification state as Invalid. PR1865114
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Too frequent LSP generation is observed on specific SR-LDP stitching scenario. PR1865829
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Longer convergence is seen for a BGP neighbor having validation configured in its import policy. PR1875144
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MX960 mcsnoopd core dump during rt_mcnh_nh_release. PR1876458
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The aggregate-bandwidth feature inconsistency is observed on BGP Route Reflectors with VRF L3VPN multipath. PR1877111
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BGP updates missing graceful-shutdown community after quick sender configuration statement flaps. PR1877261
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rpd crashes when changes are applied to as-path with dynamic-db in use. PR1877288
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EBGP MULTIPATH is not set on ACTIVE route. PR1877332
Services Applications
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The MX Series devices is unable to properly convert SRC/DST port value for Radius-flow-tap Lawful Intercept DTCP ADD request. PR1839617
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Traffic was lost on MX Series platforms following a Routing Engine failover. PR1853304
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L2TP subscriber is unable to connect when configuration is loaded over default config on all Junos platforms with L2TP subscribers. PR1877876
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On-Box IPv6 packet capture support. PR1880090
Subscriber Access Management
User Interface and Configuration
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BGP IPv6 session control packets are discarded when changing the ipv6 neighbor-address using 'replace pattern' PR1816534
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The
rollbackconfiguration fails with commit error: Invalid XML from dfwd. PR1829614 -
XML namespace string in rpc-reply tag for system-uptime-information was changed to represent the full version name. PR1842868
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TFTP server crashes when configuration to limit connections are not reflected. PR1854461
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Unexpected issues such as login failures or disabled interfaces observed following abrupt reboot during commit operation. PR1861063