CVE-2025-23016
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.
- Score
- CVSS 3.1 9.3 Critical
- Status
- Deferred - cve@mitre.org
- Published
- 2025-01-10
- Last modified
- 2026-02-26
- Weaknesses
- CWE-190
Affected products
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
