CVE-2025-40907
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library
MEDIUM 5.3EPSS 0.7%
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library.The included FastCGI library is affected by CVE-2025-23016, causing 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.
- Affected
- ETHER · FCGI
- CVSS v3.1 CNA
- 5.3 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L - EPSS
- 0.68% chance of exploitation in the next 30 days, 51st percentile
- Published
- 2025-05-16
- Updated
- 2025-09-05
Proof-of-concept exploits (1)
- FastCGI-Archives/fcgi2/issues/67246★ · 2025-11-26
Security advisories
- http://www.openwall.com/lists/oss-security/2025/04/23/4
- https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library
- https://patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.patch
- perl-catalyst/FCGI/issues/14