CVE-2023-26421: Adobe Acrobat

High severity, CVSS 7.8. EPSS: 4.6% chance of exploitation in the next 30 days.

Adobe Acrobat Reader versions 23.001.20093 (and earlier) and 20.005.30441 (and earlier) are affected by an Integer Underflow or Wraparound 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: from 20.001.3005, up to and including 20.005.30441
• Adobe Acrobat DC: from 15.008.20082, up to and including 23.001.20093
• Adobe Acrobat Reader: from 20.001.3005, up to and including 20.005.30441
• Adobe Acrobat Reader DC: from 15.008.20082, up to and including 23.001.20093

Published 2023-04-12. Last modified 2026-06-17.