SMB: Linux Kernel ksmbd Preauth_HashValue Race Condition

This signature detects attempts to exploit a known vulnerability against Linux Kernel ksmbd. A successful attack can lead to arbitrary code execution.

References

CVE: CVE-2025-38561

Short Name
SMB:LINUX-KERN-KSMBD-PREAUTH-CE
Severity
Major
Recommended
True
Recommended Action
Drop
Category
SMB
Keywords
CVE-2025-38561 Condition Kernel Linux Preauth_HashValue Race ksmbd
Release Date
11/06/2025
Supported Platforms

srx-branch-12.3

srx-19.3

srx-branch-19.3

vsrx3bsd-19.2

srx-branch-19.4

vsrx-19.4

mx-12.3

mx-19.4

vmx-19.4

mx-19.3

vsrx3bsd-19.4

srx-19.4

vsrx-12.3

vmx-19.3

vsrx-19.2

srx-12.3

Sigpack Version
3882
False Positive
Unknown

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