CVE-2025-23016
Last modified
CVE-2025-23016 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 0.57% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Weakness Enumeration
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2025-23016?
How severe is CVE-2025-23016?
How do I fix CVE-2025-23016?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2025
- CVE-2025-2301Authorization Bypass Through User-Controlled Key vulnerabili…4.4
- CVE-2025-23010An Improper Link Resolution Before File Access ('Link Follow…7.2
- CVE-2025-23011Fedora Repository 3.8.1 allows path traversal when extractin…8.8
- CVE-2025-23012Fedora Repository 3.8.x includes a service account (fedoraIn…8.7
- CVE-2025-23013In Yubico pam-u2f before 1.3.1, local privilege escalation c…7.3
- CVE-2025-23015Privilege Defined With Unsafe Actions vulnerability in Apach…8.8
- CVE-2025-23017WorkOS Hosted AuthKit before 2025-01-07 allows a password au…6
- CVE-2025-23018IPv4-in-IPv6 and IPv6-in-IPv6 tunneling (RFC 2473) do not re…6.5
- CVE-2025-23019IPv6-in-IPv4 tunneling (RFC 4213) allows an attacker to spoo…6.5
- CVE-2025-2302The Advanced Woo Search plugin for WordPress is vulnerable t…6.4
- CVE-2025-23020An issue was discovered in Kwik before 0.10.1. A hash collis…5.3
- CVE-2025-23022FreeType 2.8.1 has a signed integer overflow in cf2_doFlex i…6.2
Are you affected by CVE-2025-23016?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST
