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.
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Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2025-01-10. NVD baseline CVSS 9.3; sources differ by 0.0.
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.
January 10, 2025
April 15, 2026
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| ubuntu | libfcgi0t64 (2.4.2-2.1ubuntu0.25.04.1) @ plucky | 2026-05-21 | ubuntu |
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ubuntu · msrc
CWE-190