CVE-2026-76524

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.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensrc-snort3-2fXGJPfe

Configurations

No configuration.

History

21 Oct 2026, 17:19

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 17:19

Updated : 2026-10-22 14:17

NVD link : CVE-2026-76524

Mitre link : CVE-2026-76524

CVE.ORG link : CVE-2026-76524

JSON object : View

Products Affected

No product.

CWE

CWE-306

Missing Authentication for Critical Function

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"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": 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"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensrc-snort3-2fXGJPfe", "source": "psirt@cisco.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-306"}]}], "descriptions": [{"lang": "en", "value": "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.\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."}], "lastModified": "2026-10-22T14:17:49.670", "sourceIdentifier": "psirt@cisco.com"}