# CVE-2014-3931

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.

- Page: https://www.vulneraibility.com/cve/CVE-2014-3931
- CVSS: 9.8
- Known exploited: yes, in CISA KEV since 2025-07-07; CISA due date 2025-07-28
- EPSS: 28.98%
- CISA SSVC: exploitation active, automatable yes, technical impact total (assessed 2025-07-17)
- Weakness: CWE-119
- Published: 2017-03-31

## Affected

- multi-router_looking_glass_project:multi-router_looking_glass

## References

- [other] http://mrlg.op-sec.us/
- [other] http://www.s3.eurecom.fr/cve/CVE-2014-3931.txt
- [other] https://hackerone.com/reports/16330
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-3931

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.