CVE-2014-3931 (GCVE-0-2014-3931)

Vulnerability from cvelistv5 – Published: 2017-03-31 15:00 – Updated: 2025-10-21 23:55
VLAI CISA Previdian
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-17 03:55 UTC
CWE
  • n/a
  • CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
mitre CNA under the mitre root
CNA scorecard E 28/100 over 2348 records in the last 180 days details
References
Date Public
2014-08-17 00:00
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 56cae8ad-2904-4a43-85bf-c078538068f6

Vulnerability ID: CVE-2014-3931

Status: Confirmed

Status Updated: 2025-07-07 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2025-07-07
Asserted: 2025-07-07
Scope
Notes: KEV entry: Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability | Affected: Looking Glass / Multi-Router Looking Glass (MRLG) | 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. | 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. | Due date: 2025-07-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://mrlg.op-sec.us/ ; https://nvd.nist.gov/vuln/detail/CVE-2014-3931
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-119
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multi-Router Looking Glass (MRLG)
Due Date 2025-07-28
Date Added 2025-07-07
Vendorproject Looking Glass
Vulnerabilityname Multi-Router Looking Glass (MRLG) Buffer Overflow Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:24 UTC | Updated: 2026-02-06 07:53 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 7271608b-0f3e-4e79-b1d7-c163d6798500

Vulnerability ID: CVE-2014-3931

Status: Confirmed

Status Updated: 2026-06-01 10:36 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01
Scope
Notes: KEVIntel entry: 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. | Affected: MRLG / Multi-Router Looking Glass | CVSS: 9.8 (CRITICAL) | EPSS: 0.26572 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title 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.
Vendor MRLG
Product Multi-Router Looking Glass
Added Date 2026-06-01T10:36:30.780Z
Cvss Score 9.8
Epss Score 0.26572
Cvss Severity CRITICAL
Epss Percentile 0.9776
Used In Malware unknown
Ahead Of Cisa Kev 
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Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:42 UTC | Updated: 2026-06-19 12:42 UTC
Show details on NVD website
To clipboard 

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            "data_format": "MITRE",
            "data_type": "CVE",
            "data_version": "4.0",
            "description": {
              "description_data": [
                {
                  "lang": "eng",
                  "value": "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."
                }
              ]
            },
            "problemtype": {
              "problemtype_data": [
                {
                  "description": [
                    {
                      "lang": "eng",
                      "value": "n/a"
                    }
                  ]
                }
              ]
            },
            "references": {
              "reference_data": [
                {
                  "name": "http://mrlg.op-sec.us/",
                  "refsource": "CONFIRM",
                  "url": "http://mrlg.op-sec.us/"
                },
                {
                  "name": "http://www.s3.eurecom.fr/cve/CVE-2014-3931.txt",
                  "refsource": "MISC",
                  "url": "http://www.s3.eurecom.fr/cve/CVE-2014-3931.txt"
                },
                {
                  "name": "https://hackerone.com/reports/16330",
                  "refsource": "MISC",
                  "url": "https://hackerone.com/reports/16330"
                }
              ]
            }
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "assignerShortName": "mitre",
        "cveId": "CVE-2014-3931",
        "datePublished": "2017-03-31T15:00:00.000Z",
        "dateReserved": "2014-05-31T00:00:00.000Z",
        "dateUpdated": "2025-10-21T23:55:43.153Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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