CVE-2018-25356 SIPp 3.6 Local Buffer Overflow via Command-line Arguments
Local attackers can execute arbitrary code or crash SIPp by supplying oversized input to specific command-line arguments.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-25356?
CVE-2018-25356 is a high-severity memory corruption vulnerability in SIPp, published on 23 May 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-120
Which versions are affected by CVE-2018-25356?
How do I fix CVE-2018-25356?
No fix has been published for CVE-2018-25356 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-25356 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2018-25356 exists.
Sources
Also known as GHSA-9hpq-f88h-gmv3.