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Description

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.

PUBLISHED Reserved 2026-05-23 | Published 2026-05-23 | Updated 2026-05-23 | Assigner VulnCheck




HIGH: 8.6CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
HIGH: 8.4CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Problem types

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Product status

Any version
affected

Credits

Fakhri Zulkifli finder

References

www.exploit-db.com/exploits/44962 (ExploitDB-44962) exploit

sipp.sourceforge.net/ (Official Product Homepage) product

github.com/SIPp/sipp/releases (Product Reference) product

www.vulncheck.com/...fer-overflow-via-command-line-arguments (VulnCheck Advisory: SIPp 3.6 Local Buffer Overflow via Command-line Arguments) third-party-advisory

cve.org (CVE-2018-25356)

nvd.nist.gov (CVE-2018-25356)

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