Integer overflow in Adobe Acrobat 2024
CVE-2026-81977
Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to disclose sensitive information. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- psirt@adobe.com (vendor-advisory)
Frequently asked questions
- What is CVE-2026-81977?
- CVE-2026-81977 is a medium-severity vulnerability in Adobe Acrobat 2024, classified under Integer Underflow. CVSS score: 5.5/10. Published 2026-09-08.
- How severe is CVE-2026-81977?
- Medium severity. CVSS v3 base score is 5.5 out of 10.