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CVE-2014-3931

Improper Restriction of Memory Buffer: Is CVE-2014-3931 real, exploitable, or a false positive? Here's the community verdict.

Community verdict: No field verdicts yet. Be the first practitioner to weigh in.

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signals

public sources

Exploited in wild
Yes
CISA KEV · Jul 7, 2025
Public exploit
None known
Metasploit/EDB/PoC
Base severity
9.8 Critical
CVSS
Exploitation prob.
29%
FIRST EPSS
Weakness
CWE-119 · Improper Restriction of Memory Buffer
CWE

Confirmed exploited in the wild. Patch this first, regardless of the base score.

cisa ssvc

CISA Vulnrichment · assessed

Exploitation
Active
in the wild
Automatable
Yes
at scale
Technical impact
Total
on success

CISA decision, by how critical the affected system is to you:

  • low impact → Attend
  • medium impact → Act
  • high impact → Act

Track: normal patch cycle · Track*: watch closely · Attend: patch sooner · Act: patch now. About SSVC ↗

baseline read

auto · not a community verdict

Real — exploited in the wild

CISA confirms active exploitation. Treat scanner hits as true positives unless your specific version or config is unaffected.

Based on CISA KEV

Confirm or dispute →
Affected:Multi Router Looking Glass Project

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

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.

References

NVD MITRE CVE.org CISA KEV VulnCheck KEV

Published · Added to CISA KEV (3020 days after publication)

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timeline

  1. CISA SSVC assessment · exploitation: active
  2. Added to VulnCheck KEV · reported exploited in the wild
  3. Added to CISA KEV · confirmed exploited in the wild
  4. Published by NVD

Score and exploit changes tracked since .

Community ground truth

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In your experience, is this finding real and exploitable?

awaiting field verdicts
Real, but not a risk here
Not a real issue

Curated baseline: TruePositive's read from public sources is Real & exploitable — a starting point, not a community verdict.

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Field notes & remediation

Verdicts are the quick signal. Notes are the evidence and fixes behind them.

  • 0
    Field note · TruePositive EditorialCurated

    Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability — Multi-Router Looking Glass (MRLG) contains a buffer overflow vulnerability that could allow remote attackers to cause an arbitrary memory write and memory corruption. Listed in the CISA KEV catalog (added 2025-07-07) — confirmed exploited in the wild, not theoretical. FIRST EPSS puts the chance of exploitation in the next 30 days at ~29%. Treat it as real and prioritize remediation over triage.

  • 0
    Remediation · TruePositive EditorialCurated

    Required action for Looking Glass Multi-Router Looking Glass (MRLG): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA set a federal remediation due date of 2025-07-28. After patching, verify the vulnerable path is no longer reachable before closing the finding.

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Related CVEs

Same weakness: CWE-119 · Improper Restriction of Memory Buffer.