CVE-2014-3931fastping.c in MRLG (aka Multi-Router Looking Glass) before 5.5.0 allows remote attackers to cause an arbitrary memory write and memory corruption.
Updated under an hour ago ()
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It affects multi-router_looking_glass_project multi-router_looking_glass. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Jul 7, 2025; federal agencies had to remediate by Jul 28, 2025. Treat that date as your deadline.
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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
- 9.8 CRITICAL (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-119
- Known exploited
- Added to CISA KEV Jul 7, 2025; federal remediation due Jul 28, 2025Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 28.98% (percentile 98)
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Oct 21, 2025
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
multi-router_looking_glass_project multi-router_looking_glass multi-router_looking_glass_project:multi-router_looking_glass | through 5.4.1 | NVD |
References
- http://mrlg.op-sec.us/x-refsource-confirm, third-party-advisory
- http://www.s3.eurecom.fr/cve/CVE-2014-3931.txtx-refsource-misc, third-party-advisory
- https://hackerone.com/reports/16330x-refsource-misc, exploit, third-party-advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2014-3931us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.