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Fedora 43: fcgi Critical Update CVE-2025-23016

Linuxsecurity •LinuxSecurity Advisories • December 5, 2025

FastCGI is a language independent, scalable, open extension to CGI that provides high performance without the limitations of server specific APIs. Update Information : 2.4.7 release, fixes CVE-2025-23016

FastCGI is a language independent, scalable, open extension to CGI that

provides high performance without the limitations of server specific APIs.

2.4.7 release, fixes CVE-2025-23016

* Wed Nov 26 2025 Andrew Bauer - 2.4.7-1 - 2.4.7 release, fixes CVE-2025-23016

[ 1 ] Bug #2417257 - fcgi-2.4.7 is available

This update can be installed with the "dnf" update program. Use su -c 'dnf upgrade --advisory FEDORA-2025-93042e260c' at the command line. For more information, refer to the dnf documentation available at

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Fedora 41 and 43: Critical Update for FastCGI CVE-2025-23016 Fedora has released an update for FastCGI version 2.4.7 to address the critical vulnerability CVE-2025-23016. This vulnerability affects systems using FastCGI, which is an extension to CGI designed for high performance. The update was made available on November 26, 2025. 3 sources 34

Extracted Entities

CVEs (1)

CVE-2025-23016