CVE-2025-23016 — FastCGI / fcgi

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
FastCGI / fcgi	affected 2.0.0 through 2.4.4

CWE

CWE-190

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

ADP enrichment

CISA-ADP

No English description supplied.

https://www.synacktiv.com/en/publications/cve-2025-23016-exploiting-the-fastcgi-library

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2025/04/23/4
https://lists.debian.org/debian-lts-announce/2025/10/msg00009.html