CVE-2026-81977 json
Acrobat Reader | Integer Underflow (Wrap or Wraparound) (CWE-191)
published 2mo ago modified 2mo ago also EUVD-2026-74102
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 17%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- Adobe Adobe Acrobat 26.002.21901
- Adobe Acrobat Reader 26.002.21901
- Adobe Acrobat 2024 24.001.30429
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2mo ago
Exploit prediction
0.26% chance of exploitation in the next 30 days, higher than 17% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
Affected products
- Adobe Adobe Acrobat
- Adobe Acrobat Reader
- Adobe Acrobat 2024
Classification
- Weakness
-
- CWE-191 Integer Underflow (Wrap or Wraparound)
References
-
helpx.adobe.com
/security/products/acrobat/apsb26-141.html
vendor-advisory
Sources
- CVE List CVE-2026-81977
- NVD CVE-2026-81977
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.