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CVE-2023-21608: Adobe Acrobat and Reader Use-After-Free Vulnerability

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2023-10-10
• EPSS: 59.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-01-18 · updated 2026-06-17
• Weakness: CWE-416

Description

Adobe Acrobat Reader versions 22.003.20282 (and earlier), 22.003.20281 (and earlier) and 20.005.30418 (and earlier) are affected by a Use After Free vulnerability that could result in 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 20.001.30005 through 20.005.30418
• Adobe Acrobat DC: from 15.008.20082 through 22.003.20282; from 15.008.20082 through 22.003.20281
• Adobe Acrobat Reader: from 20.001.30005 through 20.005.30418
• Adobe Acrobat Reader: from 15.008.20082 through 22.003.20282; from 15.008.20082 through 22.003.20281

References

• https://helpx.adobe.com/security/products/acrobat/apsb23-01.html
• https://helpx.adobe.com/security/products/acrobat/apsb23-01.html
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21608

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