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CVE-2021-21041: Acrobat Reader DC Use-After-Free Vulnerability Could Lead To Arbitrary Code Execution

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-02-11 · updated 2026-06-17
• Weakness: CWE-416

Description

Acrobat Reader DC versions versions 2020.013.20074 (and earlier), 2020.001.30018 (and earlier) and 2017.011.30188 (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 for Edge: from 17.0 through 17.011.30188; from 20.0 through 20.001.30018
• Adobe Acrobat DC: through 20.013.20074
• Adobe Acrobat Reader: from 17.0 through 17.011.30188; from 20.0 through 20.001.300183
• Adobe Acrobat Reader: through 20.013.20074

References

• https://helpx.adobe.com/security/products/acrobat/apsb21-09.html
• https://helpx.adobe.com/security/products/acrobat/apsb21-09.html

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