CVE-2014-3931

multi-router looking glass project multi-router looking glass

Published 31 Mar 2017 · updated 17 Jun 2026 · Analyzed

9.8 Critical · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 7 Jul 2025, with a remediation deadline of 28 Jul 2025 for US federal agencies.

Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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.

References

mrlg.op-sec.us/ · Third Party Advisory
www.s3.eurecom.fr/cve/CVE-2014-3931.txt · Third Party Advisory
hackerone.com/reports/16330 · Exploit, Third Party Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-3931 · US Government Resource