Missing Authentication for Critical Function in Snort - CVE-2026-76524
Published: October 21, 2026
Vulnerability identifier: #VU156717
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-76524
CWE-ID: CWE-306
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to execute arbitrary commands as the Snort 3 process user and read and write Snort 3 process memory.
The vulnerability exists due to missing authentication in the Snort 3 control channel socket implementation when handling local connections. A local user can connect to the control channel socket to execute arbitrary commands as the Snort 3 process user and read and write its memory.
Affected software
Snort
How to mitigate CVE-2026-76524
Install security update from vendor's website.
Snort - update to 3.12.4.0