What’s Vulnerable › Vulnerabilities

CVE-2014-3931: Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2025-07-07
• EPSS: 29.0% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-03-31 · updated 2026-06-17
• Weakness: CWE-119

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.

Affected products

• Multi-Router Looking Glass Project Multi-Router Looking Glass: through 5.4.1

References

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

Get alerted when CVE-2014-3931 or the next vulnerability affects your stack