All vulnerabilities
CVE-2026-76524

Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability

Cisco Cisco Open Source Snort3Network & edge
Open in ThreatlineRecord JSON
CVSS
7.8High
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.14%Chance of exploitation activity in the next 30 days, higher than 2% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed inNone listedNo source names a fixed version. Check the vendor advisory below
Published21 Oct 2026Updated 22 Oct 2026CVE List

What fixes it

No source in this snapshot names a fixed version. The vendor advisories under References are the place to check.

Vendor and government advisories 1

Vendors that say their products are affected, and agencies that issued alerts. Check each for the fixed release of the product you run.

Reports 2

1 outlet mention it. Reports are not confirmation; each links to its source.

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.

Text from CVE List

Affected versions 30

  • Cisco Open Source Snort3affected: 3.12.2.0CVE List
  • Cisco Open Source Snort3affected: 3.1.2.0CVE List
  • Cisco Open Source Snort3affected: 3.1.3.0CVE List
  • Cisco Open Source Snort3affected: 3.1.4.0CVE List
  • Cisco Open Source Snort3affected: 3.1.5.0CVE List
  • Cisco Open Source Snort3affected: 3.1.6.0CVE List
  • Cisco Open Source Snort3affected: 3.1.7.0CVE List
  • Cisco Open Source Snort3affected: 3.1.8.0CVE List
  • Cisco Open Source Snort3affected: 3.1.9.0CVE List
  • Cisco Open Source Snort3affected: 3.1.10.0CVE List
  • Cisco Open Source Snort3affected: 3.1.12.0CVE List
  • Cisco Open Source Snort3affected: 3.1.13.0CVE List
  • Cisco Open Source Snort3affected: 3.1.14.0CVE List
  • Cisco Open Source Snort3affected: 3.1.15.0CVE List
  • Cisco Open Source Snort3affected: 3.1.16.0CVE List
  • Cisco Open Source Snort3affected: 3.1.17.0CVE List
  • Cisco Open Source Snort3affected: 3.1.18.0CVE List
  • Cisco Open Source Snort3affected: 3.1.19.0CVE List
  • Cisco Open Source Snort3affected: 3.1.20.0CVE List
  • Cisco Open Source Snort3affected: 3.1.21.0CVE List
  • Cisco Open Source Snort3affected: 3.1.22.0CVE List
  • Cisco Open Source Snort3affected: 3.1.23.0CVE List
  • Cisco Open Source Snort3affected: 3.1.24.0CVE List
  • Cisco Open Source Snort3affected: 3.1.25.0CVE List
  • Cisco Open Source Snort3affected: 3.1.27.0CVE List
  • Cisco Open Source Snort3affected: 3.1.28.0CVE List
  • Cisco Open Source Snort3affected: 3.1.29.0CVE List
  • Cisco Open Source Snort3affected: 3.1.30.0CVE List
  • Cisco Open Source Snort3affected: 3.1.31.0CVE List
  • Cisco Open Source Snort3affected: 3.1.32.0CVE List

References 1