CVE-2018-25356: Sipp

High severity, CVSS 8.4. EPSS: 0.2% chance of exploitation in the next 30 days.

SIPp 3.6 and earlier contains a local buffer overflow vulnerability in command-line argument handling that allows local attackers to crash the application or execute arbitrary code. Attackers can trigger the vulnerability by supplying oversized input to the -3pcc, -i, or -log_file parameters, causing strcpy to write beyond buffer boundaries in sipp.cpp.

Affected products

• Sipp Sipp: up to and including 3.6

Published 2026-05-23. Last modified 2026-10-06.