CVE-2014-3931 Multi-Router Looking Glass (MRLG) Buffer Overflow
Remote attackers can trigger arbitrary memory writes in MRLG, potentially leading to code execution or service crashes.
- Exploited in the wild
- Since 7 Jul 2025
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2014-3931?
CVE-2014-3931 is a critical memory corruption vulnerability in n/a, published on 31 Mar 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
fastping.c in MRLG (aka Multi-Router Looking Glass) before 5.5.0 allows remote attackers to cause an arbitrary memory write and memory corruption.
Weakness: CWE-119
Which versions are affected by CVE-2014-3931?
It affects 1 product.
Products include Multi-Router Looking Glass Project Multi-Router Looking Glass.
How do I fix CVE-2014-3931?
No fix has been published for CVE-2014-3931 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 28 Jul 2025.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2014-3931 being exploited?
Yes. Attackers have exploited CVE-2014-3931 in the wild since at least 7 Jul 2025.
Sources
Also known as GHSA-vwmm-77c8-pxrj.