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CVE-2021-21061: Acrobat Pro DC Use-After-Free Vulnerability Could Lead to Information Disclosure

• Severity: medium (CVSS 4.3 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% 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 Pro 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 when parsing a specially crafted PDF file. An unauthenticated attacker could leverage this vulnerability to disclose sensitive information 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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