High 8.4Published May 23, 2026

CVE-2018-25356SIPp 3.6 Local Buffer Overflow via Command-line Arguments

Updated under an hour ago (Oct 26, 2026, 4:40 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 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.

CVSS: 8.4 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-120
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: May 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Sipp SIPp sipp:sipp (from the name)	through 3.6	CNA record

References

https://www.exploit-db.com/exploits/44962exploit
http://sipp.sourceforge.net/product
https://github.com/SIPp/sipp/releasesproduct
https://www.vulncheck.com/advisories/sipp-local-buffer-overflow-via-command-line-argumentsthird-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.