HTTP: Adobe Acrobat Reader DC Window Procedure WM_SETFOCUS Use After Free
This signature detects attempts to exploit a known vulnerability against Adobe Acrobat Reader. A successful attack can lead to arbitrary code execution.
Extended Description
Acrobat Reader DC versions 2021.005.20054 (and earlier), 2020.004.30005 (and earlier) and 2017.011.30197 (and earlier) are affected by an Use-after-free vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected Products
Adobe acrobat_dc
Short Name
HTTP:STC:ADOBE:CVE-2021-28639
Severity
Critical
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
Acrobat Adobe After CVE-2021-28639 DC Free Procedure Reader Use WM_SETFOCUS Window
Release Date
09/08/2021
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
3417
False Positive
Unknown
Vendors
Adobe
CVSS Score
9.3