CVE-2021-21086

Adobe Reader CoolType Arbitrary Stack Manipulation

CVE-2021-21086 is fixed in Adobe Acrobat Reader DC on 1 platform by Adobe Acrobat Reader DC 21.001.20155 (version 21.001.20155), released April 27, 2021. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
No vendor severity
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0471
91st percentile

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (and earlier) are affected by an Out-of-bounds Write vulnerability in the CoolType library. 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.

Where it's fixed

ProductFixed inFixReleased
Windows apps
Adobe Acrobat Reader DC 21.001.20155 Adobe Acrobat Reader DC 21.001.20155 Apr 27, 2021

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