CVE-2023-26421 json
ZDI-CAN-19832: Adobe Acrobat Reader DC Doc Object Integer Underflow Remote Code Execution Vulnerability
published 2023-04-12 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-30241
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.6%
- EPSS 4.6% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
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.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 20 mo ago
Exploit prediction
4.57% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
Affected products
- Adobe Acrobat Reader
Classification
- Weakness
-
- CWE-191 Integer Underflow (Wrap or Wraparound)
References
-
helpx.adobe.com
/security/products/acrobat/apsb23-24.html
vendor-advisory
Sources
- CVE List CVE-2023-26421
- NVD CVE-2023-26421
Fencer Vulns 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.