CVE-2018-25356

SIPp 3.6 Local Buffer Overflow via Command-line Arguments

CVSS 8.6 HIGHEPSS 0.2%CWE-120

Vexday Risk Score

41Attention

SSVC decision (CISA)

Attend

PoC available → attend closely

CVSS 8.6EPSS 0.2%KEV nãoPoC públicaNuclei —Metasploit —Patch —

Lifecycle

23 May 2026Published on NVD

Recommendation: Plan a near-term fix — a public PoC already exists.

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.

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Affected products

Sipp · SIPp

public PoCs found — 1

cve_referencewww.exploit-db.com/exploits/44962unverified

⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

References

https://github.com/SIPp/sipp/releases http://sipp.sourceforge.net/https://www.exploit-db.com/exploits/44962 https://www.vulncheck.com/advisories/sipp-local-buffer-overflow-via-command-line-arguments