Vulnerability-Lookup

GHSA-4376-J46P-QQM7

Vulnerability from github – Published: 2026-10-21 18:33 – Updated: 2026-10-21 18:33

Details

This vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory.

Severity

7.8 (High)


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

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{
  "affected": [],
  "aliases": [
    "CVE-2026-76524"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-306"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-21T17:19:09Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability in the control channel socket implementation of\u0026nbsp;Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user.\n\nThis vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory.",
  "id": "GHSA-4376-j46p-qqm7",
  "modified": "2026-10-21T18:33:29Z",
  "published": "2026-10-21T18:33:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76524"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensrc-snort3-2fXGJPfe"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-76524 (GCVE-0-2026-76524)

Vulnerability from cvelistv5 – Published: 2026-10-21 16:18 – Updated: 2026-10-22 13:37

Title

Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability

Summary

A vulnerability in the control channel socket implementation of Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user. This vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory.

Severity

7.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-21 17:12 UTC

CWE

CWE-306 - Missing Authentication for Critical Function

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 442 records in the last 180 days details

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco Open Source Snort3	Affected: 3.12.2.0 Affected: 3.1.2.0 Affected: 3.1.3.0 Affected: 3.1.4.0 Affected: 3.1.5.0 Affected: 3.1.6.0 Affected: 3.1.7.0 Affected: 3.1.8.0 Affected: 3.1.9.0 Affected: 3.1.10.0 Affected: 3.1.12.0 Affected: 3.1.13.0 Affected: 3.1.14.0 Affected: 3.1.15.0 Affected: 3.1.16.0 Affected: 3.1.17.0 Affected: 3.1.18.0 Affected: 3.1.19.0 Affected: 3.1.20.0 Affected: 3.1.21.0 Affected: 3.1.22.0 Affected: 3.1.23.0 Affected: 3.1.24.0 Affected: 3.1.25.0 Affected: 3.1.27.0 Affected: 3.1.28.0 Affected: 3.1.29.0 Affected: 3.1.30.0 Affected: 3.1.31.0 Affected: 3.1.32.0 Affected: 3.1.36.0 Affected: 3.1.38.0 Affected: 3.1.39.0 Affected: 3.1.40.0 Affected: 3.1.41.0 Affected: 3.1.42.0 Affected: 3.1.43.0 Affected: 3.1.45.0 Affected: 3.1.47.0 Affected: 3.1.48.0 Affected: 3.1.50.0 Affected: 3.1.51.0 Affected: 3.1.52.0 Affected: 3.1.53.0 Affected: 3.1.55.0 Affected: 3.1.56.0 Affected: 3.1.57.0 Affected: 3.1.58.0 Affected: 3.1.59.0 Affected: 3.1.60.0 Affected: 3.1.61.0 Affected: 3.1.62.0 Affected: 3.1.63.0 Affected: 3.1.64.0 Affected: 3.1.65.0 Affected: 3.1.66.0 Affected: 3.1.67.0 Affected: 3.1.69.0 Affected: 3.1.70.0 Affected: 3.1.71.0 Affected: 3.1.72.0 Affected: 3.1.73.0 Affected: 3.1.74.0 Affected: 3.1.75.0 Affected: 3.1.76.0 Affected: 3.1.77.0 Affected: 3.1.78.0 Affected: 3.1.81.0 Affected: 3.1.82.0 Affected: 3.1.83.0 Affected: 3.1.84.0 Affected: 3.2.1.0 Affected: 3.2.2.0 Affected: 3.3.0.0 Affected: 3.3.1.0 Affected: 3.3.2.0 Affected: 3.3.3.0 Affected: 3.3.4.0 Affected: 3.3.5.0 Affected: 3.3.7.0 Affected: 3.5.0.0 Affected: 3.5.1.0 Affected: 3.8.1.0 Affected: 3.6.0.0 Affected: 3.6.2.0 Affected: 3.9.3.0 Affected: 3.7.2.0 Affected: 3.7.0.0 Affected: 3.9.6.0 Affected: 3.10.0.0 Affected: 3.10.2.0 Affected: 3.7.4.0 Affected: 3.9.0.0 Affected: 3.5.2.0 Affected: 3.12.1.0 Affected: 3.6.1.0 Affected: 3.9.2.0 Affected: 3.6.3.0 Affected: 3.9.5.0 Affected: 3.7.1.0 Affected: 3.9.7.0 Affected: 3.7.3.0 Affected: 3.10.1.0 Affected: 3.9.1.0 Affected: 3.11.1.0

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-76524",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-21T17:12:12.638552Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-22T13:37:52.029Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Open Source Snort3",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "3.12.2.0"
            },
            {
              "status": "affected",
              "version": "3.1.2.0"
            },
            {
              "status": "affected",
              "version": "3.1.3.0"
            },
            {
              "status": "affected",
              "version": "3.1.4.0"
            },
            {
              "status": "affected",
              "version": "3.1.5.0"
            },
            {
              "status": "affected",
              "version": "3.1.6.0"
            },
            {
              "status": "affected",
              "version": "3.1.7.0"
            },
            {
              "status": "affected",
              "version": "3.1.8.0"
            },
            {
              "status": "affected",
              "version": "3.1.9.0"
            },
            {
              "status": "affected",
              "version": "3.1.10.0"
            },
            {
              "status": "affected",
              "version": "3.1.12.0"
            },
            {
              "status": "affected",
              "version": "3.1.13.0"
            },
            {
              "status": "affected",
              "version": "3.1.14.0"
            },
            {
              "status": "affected",
              "version": "3.1.15.0"
            },
            {
              "status": "affected",
              "version": "3.1.16.0"
            },
            {
              "status": "affected",
              "version": "3.1.17.0"
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            {
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              "version": "3.1.18.0"
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            {
              "status": "affected",
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            {
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              "version": "3.1.21.0"
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              "status": "affected",
              "version": "3.1.22.0"
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              "version": "3.1.23.0"
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              "status": "affected",
              "version": "3.1.24.0"
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              "status": "affected",
              "version": "3.1.25.0"
            },
            {
              "status": "affected",
              "version": "3.1.27.0"
            },
            {
              "status": "affected",
              "version": "3.1.28.0"
            },
            {
              "status": "affected",
              "version": "3.1.29.0"
            },
            {
              "status": "affected",
              "version": "3.1.30.0"
            },
            {
              "status": "affected",
              "version": "3.1.31.0"
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            {
              "status": "affected",
              "version": "3.1.32.0"
            },
            {
              "status": "affected",
              "version": "3.1.36.0"
            },
            {
              "status": "affected",
              "version": "3.1.38.0"
            },
            {
              "status": "affected",
              "version": "3.1.39.0"
            },
            {
              "status": "affected",
              "version": "3.1.40.0"
            },
            {
              "status": "affected",
              "version": "3.1.41.0"
            },
            {
              "status": "affected",
              "version": "3.1.42.0"
            },
            {
              "status": "affected",
              "version": "3.1.43.0"
            },
            {
              "status": "affected",
              "version": "3.1.45.0"
            },
            {
              "status": "affected",
              "version": "3.1.47.0"
            },
            {
              "status": "affected",
              "version": "3.1.48.0"
            },
            {
              "status": "affected",
              "version": "3.1.50.0"
            },
            {
              "status": "affected",
              "version": "3.1.51.0"
            },
            {
              "status": "affected",
              "version": "3.1.52.0"
            },
            {
              "status": "affected",
              "version": "3.1.53.0"
            },
            {
              "status": "affected",
              "version": "3.1.55.0"
            },
            {
              "status": "affected",
              "version": "3.1.56.0"
            },
            {
              "status": "affected",
              "version": "3.1.57.0"
            },
            {
              "status": "affected",
              "version": "3.1.58.0"
            },
            {
              "status": "affected",
              "version": "3.1.59.0"
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            {
              "status": "affected",
              "version": "3.1.60.0"
            },
            {
              "status": "affected",
              "version": "3.1.61.0"
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            {
              "status": "affected",
              "version": "3.1.62.0"
            },
            {
              "status": "affected",
              "version": "3.1.63.0"
            },
            {
              "status": "affected",
              "version": "3.1.64.0"
            },
            {
              "status": "affected",
              "version": "3.1.65.0"
            },
            {
              "status": "affected",
              "version": "3.1.66.0"
            },
            {
              "status": "affected",
              "version": "3.1.67.0"
            },
            {
              "status": "affected",
              "version": "3.1.69.0"
            },
            {
              "status": "affected",
              "version": "3.1.70.0"
            },
            {
              "status": "affected",
              "version": "3.1.71.0"
            },
            {
              "status": "affected",
              "version": "3.1.72.0"
            },
            {
              "status": "affected",
              "version": "3.1.73.0"
            },
            {
              "status": "affected",
              "version": "3.1.74.0"
            },
            {
              "status": "affected",
              "version": "3.1.75.0"
            },
            {
              "status": "affected",
              "version": "3.1.76.0"
            },
            {
              "status": "affected",
              "version": "3.1.77.0"
            },
            {
              "status": "affected",
              "version": "3.1.78.0"
            },
            {
              "status": "affected",
              "version": "3.1.81.0"
            },
            {
              "status": "affected",
              "version": "3.1.82.0"
            },
            {
              "status": "affected",
              "version": "3.1.83.0"
            },
            {
              "status": "affected",
              "version": "3.1.84.0"
            },
            {
              "status": "affected",
              "version": "3.2.1.0"
            },
            {
              "status": "affected",
              "version": "3.2.2.0"
            },
            {
              "status": "affected",
              "version": "3.3.0.0"
            },
            {
              "status": "affected",
              "version": "3.3.1.0"
            },
            {
              "status": "affected",
              "version": "3.3.2.0"
            },
            {
              "status": "affected",
              "version": "3.3.3.0"
            },
            {
              "status": "affected",
              "version": "3.3.4.0"
            },
            {
              "status": "affected",
              "version": "3.3.5.0"
            },
            {
              "status": "affected",
              "version": "3.3.7.0"
            },
            {
              "status": "affected",
              "version": "3.5.0.0"
            },
            {
              "status": "affected",
              "version": "3.5.1.0"
            },
            {
              "status": "affected",
              "version": "3.8.1.0"
            },
            {
              "status": "affected",
              "version": "3.6.0.0"
            },
            {
              "status": "affected",
              "version": "3.6.2.0"
            },
            {
              "status": "affected",
              "version": "3.9.3.0"
            },
            {
              "status": "affected",
              "version": "3.7.2.0"
            },
            {
              "status": "affected",
              "version": "3.7.0.0"
            },
            {
              "status": "affected",
              "version": "3.9.6.0"
            },
            {
              "status": "affected",
              "version": "3.10.0.0"
            },
            {
              "status": "affected",
              "version": "3.10.2.0"
            },
            {
              "status": "affected",
              "version": "3.7.4.0"
            },
            {
              "status": "affected",
              "version": "3.9.0.0"
            },
            {
              "status": "affected",
              "version": "3.5.2.0"
            },
            {
              "status": "affected",
              "version": "3.12.1.0"
            },
            {
              "status": "affected",
              "version": "3.6.1.0"
            },
            {
              "status": "affected",
              "version": "3.9.2.0"
            },
            {
              "status": "affected",
              "version": "3.6.3.0"
            },
            {
              "status": "affected",
              "version": "3.9.5.0"
            },
            {
              "status": "affected",
              "version": "3.7.1.0"
            },
            {
              "status": "affected",
              "version": "3.9.7.0"
            },
            {
              "status": "affected",
              "version": "3.7.3.0"
            },
            {
              "status": "affected",
              "version": "3.10.1.0"
            },
            {
              "status": "affected",
              "version": "3.9.1.0"
            },
            {
              "status": "affected",
              "version": "3.11.1.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the control channel socket implementation of\u0026nbsp;Open Source Snort 3 could allow an authenticated, local attacker with low privileges to execute arbitrary commands as the Snort 3 process user.\r\n\r\nThis vulnerability is due to a lack of authentication when a local user connects to the Snort control channel socket. An attacker could exploit this vulnerability by connecting to the Snort 3 control channel socket as a local user. A successful exploit could allow the attacker to execute arbitrary commands as well as read and write Snort 3 process memory."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-306",
              "description": "Missing Authentication for Critical Function",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T16:18:12.052Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-opensrc-snort3-2fXGJPfe",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensrc-snort3-2fXGJPfe"
        }
      ],
      "source": {
        "advisory": "cisco-sa-opensrc-snort3-2fXGJPfe",
        "defects": [
          "CSCwv48789"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-76524",
    "datePublished": "2026-10-21T16:18:12.052Z",
    "dateReserved": "2026-08-19T12:02:03.643Z",
    "dateUpdated": "2026-10-22T13:37:52.029Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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