Cisco Open Source Snort up to 3.12.2.0 Control Channel Socket privileges management

Summaryinfo

A vulnerability was found in Cisco Open Source Snort and classified as very critical. Affected is an unknown function of the component Control Channel Socket. Executing a manipulation can lead to privileges management. This vulnerability appears as CVE-2026-76524. The attack requires local access. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as very critical was found in Cisco Open Source Snort. This vulnerability affects an unknown code of the component Control Channel Socket. The manipulation with an unknown input leads to a privileges management vulnerability. The CWE definition for the vulnerability is CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at sec.cloudapps.cisco.com. This vulnerability was named CVE-2026-76524 since 08/19/2026. The exploitation appears to be easy. Local access is required to approach this attack. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 10/21/2026). This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

• Cisco

Name

• Open Source Snort

Version

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

License

• commercial

Website

• Vendor: https://www.cisco.com/

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