Critical severity · published Mar 31, 2017
CVE-2014-3931
Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability
In wildKEV
9.8
CVSS
29%
EPSS
Yes
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)29.0% · higher than 98% of CVEs
Exploited in the wildYes
CISA KEVListed Jul 7, 2025
Federal remediation dueJul 28, 2025
Ransomware campaign useNot known
Affected products
Which versions
ML
Multi-router Looking Glass · Multi-router Looking Glass Project
through 5.4.1 · source: NVD
ML
Multi-Router Looking Glass (MRLG) · Looking Glass
All versions, or not specified · source: KEV
Affected product
ML
Multi-router Looking Glass
Multi-router Looking Glass Project
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2014-3931
CVE.org
https://www.cve.org/CVERecord?id=CVE-2014-3931
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
x_refsource_CONFIRM
http://mrlg.op-sec.us/
x_refsource_MISC
http://www.s3.eurecom.fr/cve/CVE-2014-3931.txt
x_refsource_MISC
https://hackerone.com/reports/16330