CVE-2014-3931VulnerabilityPublished 07/07/2025Updated 10/24/2026
CVE-2014-3931: Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability
Affects Looking Glass Multi-Router Looking Glass (MRLG)Source CISA KEV
Severity
HighNo CVSS score published yet
- Exploitation
Actively exploited – in CISA KEV since 07/07/2025
- KEV deadline
- 07/28/2025
- EPSS
- 29.0% chance of exploitation in 30 days – higher than 98% of CVEs
What to do
CISA 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
Multi-Router Looking Glass (MRLG) contains a buffer overflow vulnerability that could allow remote attackers to cause an arbitrary memory write and memory corruption.