Unrated severityNVD Advisory· Published May 16, 2025· Updated Sep 5, 2025
FCGI versions 0.44 through 0.82, for Perl, include a vulnerable version of the FastCGI fcgi2 (aka fcgi) library
CVE-2025-40907
Description
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 products
2Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
6- github.com/FastCGI-Archives/fcgi2/releases/tag/2.4.5mitrepatch
- patch-diff.githubusercontent.com/raw/FastCGI-Archives/fcgi2/pull/74.patchmitrepatch
- www.openwall.com/lists/oss-security/2025/04/23/4mitremailing-list
- github.com/FastCGI-Archives/fcgi2/issues/67mitreissue-tracking
- github.com/perl-catalyst/FCGI/issues/14mitreissue-tracking
- www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-librarymitretechnical-description
News mentions
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