CVEvulnerability
CVE-2025-23016
9.3 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2025-01-10
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 9.3 CRITICAL — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
- Weaknesses
- CWE-190
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.
Related
Weakness · CWE (1)
- CWE-190 Integer Overflow or Wraparound weakness
References
- https://github.com/FastCGI-Archives/fcgi2/issues/67 github.com
- https://github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5 github.com
- https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library www.synacktiv.com
- http://www.openwall.com/lists/oss-security/2025/04/23/4 www.openwall.com
- https://lists.debian.org/debian-lts-announce/2025/10/msg00009.html lists.debian.org
- https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library www.synacktiv.com