Buffer overflow in Sipp
CVE-2018-25356
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (4.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 5th percentile — 4.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Sipp — versions 0
Weakness classification (CWE)
References
- www.exploit-db.com/exploits/44962 (exploit)
- sipp.sourceforge.net/ (product)
- github.com/SIPp/sipp/releases (product)
- www.vulncheck.com/advisories/sipp-local-buffer-overflow-via-command-line-argume… (third-party-advisory)
Frequently asked questions
- What is CVE-2018-25356?
- CVE-2018-25356 is a high-severity vulnerability in Sipp, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 8.4/10. Published 2026-05-23.
- How severe is CVE-2018-25356?
- High severity. CVSS v3 base score is 8.4 out of 10.