Buffer overflow in Adobe Acrobat
CVE-2026-81993
Acrobat Reader is affected by a Heap-based Buffer Overflow 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.
Vulnerability class: Buffer Overflow
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (21.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
Weakness classification (CWE)
References
- helpx.adobe.com/security/products/acrobat/apsb26-141.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2026-81993?
- CVE-2026-81993 is a medium-severity vulnerability in Adobe Acrobat, classified under Heap-based Buffer Overflow. CVSS score: 5.5/10. Published 2026-09-08.
- How severe is CVE-2026-81993?
- Medium severity. CVSS v3 base score is 5.5 out of 10.