HTTP: Adobe Acrobat Reader CVE-2021-28635 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 a 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

References

CVE: CVE-2021-28635

Short Name
HTTP:STC:ADOBE:CVE-2021-28635
Severity
Minor
Recommended
True
Recommended Action
Drop
Category
HTTP
Keywords
Acrobat Adobe After CVE-2021-28635 Free Reader Use
Release Date
08/26/2021
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
3415
False Positive
Unknown
Vendors

Adobe

CVSS Score

9.3

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