CVE-2025-23016 – FastCGI fcgi2 Buffer Overflow

The following table lists the changes that have been made to the
CVE-2025-23016 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Jan. 10, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Added CWE CWE-190
    Added Reference https://github.com/FastCGI-Archives/fcgi2/issues/67
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