Integer overflow in Adobe Acrobat

CVE-2023-26421

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.

EPSS: 0.046 (90.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-26421?
CVE-2023-26421 is a high-severity vulnerability in Adobe Acrobat, classified under Integer Underflow. CVSS score: 7.8/10. Published 2023-04-12.
How severe is CVE-2023-26421?
High severity. CVSS v3 base score is 7.8 out of 10.