CVE-2025-23016
- State
- Published
- Severity
- 9.3 Critical
- Published
- Jan 10, 2025
- Updated
- Feb 26, 2026
- Reserved
- Jan 10, 2025
Description
FastCGI fcgi2 (aka fcgi) 2.x through 2.4.4 has an integer overflow (and resultant heap-based buffer overflow) via crafted nameLen or valueLen values in data to the IPC socket. This occurs in ReadParams in fcgiapp.c.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 9.3 Critical | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H | mitre |
Weaknesses
- CWE-190 Integer Overflow or Wraparound
Affected Products
| Product | Versions |
|---|---|
fcgiFastCGI |
|
References
- https://github.com/FastCGI-Archives/fcgi2/issues/67
- https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5
- https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library
- http://www.openwall.com/lists/oss-security/2025/04/23/4
- https://lists.debian.org/debian-lts-announce/2025/10/msg00009.html
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