Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2014-3931

81
FAUCET Score

CVE-2014-3931 is a critical memory corruption vulnerability affecting MRLG (Multi-Router Looking Glass) versions prior to 5.5.0, specifically within the fastping.c component. This flaw allows remote, unauthenticated attackers to achieve arbitrary memory writes, leading to severe memory corruption. With a CVSS score of 9.8 (CRITICAL), it presents a high risk due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. Notably, this CVE is listed in CISA's KEV catalog, indicating active exploitation, and has garnered significant community discussion, despite a lack of public exploit intelligence tools like Metasploit or ExploitDB entries.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.4.1CPE matchmatch criteria
cpe:2.3:a:multi-router_looking_glass_project:multi-router_looking_glass:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
26.57%
Probability of exploitation in next 30 days
EPSS Percentile
97.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
Added to KEV · Jul 7, 2025
This CVE's current EPSS score of 0.2657 is in the 95th percentile among its peer group of 36,897 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
mrlg.op-sec.us
Third Party Advisory
hackerone.com / reports/16330
ExploitThird Party Advisory
s3.eurecom.fr / cve/CVE-2014-3931.txt
Third Party Advisory