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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.

🗓️ 26 Apr 2025 07:00:00Reported by MicrosoftType 
mscve
 mscve
🔗 msrc.microsoft.com👁 1 Views

FastCGI versions fcgi2 to 2.4.4 have integer and heap overflows via crafted nameLen or valueLen in ReadParams.

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18 Feb 2026 10:09Current
8.5High risk
Vulners AI Score8.5
CVSS 3.19.3
EPSS0.00135
SSVC
1