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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact total

Affected Vendors & Products

Vendors Products
Cisco
  • Cisco Open Source Snort3

No data.

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References
Link Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensrc-snort3-2fXGJPfe cve-icon cve-icon
History

Thu, 22 Oct 2026 15:30:00 +0000

Type Values Removed Values Added
First Time appeared Cisco
Cisco cisco Open Source Snort3
Vendors & Products Cisco
Cisco cisco Open Source Snort3

Thu, 22 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 7.8, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}
cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published: 2026-10-21T16:18:12.052Z

Updated: 2026-10-22T13:37:52.029Z

Reserved: 2026-08-19T12:02:03.643Z

Link: CVE-2026-76524

cve-icon Vulnrichment

Updated: 2026-10-22T13:34:32.381Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-21T17:19:09.610

Modified: 2026-10-22T14:17:49.670

Link: CVE-2026-76524

cve-icon Redhat

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