CVE-2021-39859

Use After Free Adobe Acrobat Pro DC [HB-21-0339]

CVE-2021-39859 is fixed in Adobe Acrobat Reader DC on 1 platform by Adobe Acrobat Reader DC 21.007.20091 (version 21.007.20091), released September 9, 2021. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Use After Free vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Adobe Acrobat Reader DC 21.007.20091 Adobe Acrobat Reader DC 21.007.20091 Sep 9, 2021

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