Open Source Snort 3 Control Channel Socket Aribitrary Command Execution Vulnerability
Summary
| CVE | CVE-2026-76524 |
|---|---|
| State | PUBLISHED |
| Assigner | cisco |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-10-21 17:19:09 UTC |
| Updated | 2026-10-22 14:17:49 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Problem Types: CWE-306 | CWE-306 Missing Authentication for Critical Function
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSSV3_1 | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.12.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.3.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.4.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.5.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.6.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.7.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.8.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.9.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.10.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.12.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.13.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.14.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.15.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.16.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.17.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.18.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.19.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.20.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.21.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.22.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.23.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.24.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.25.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.27.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.28.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.29.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.30.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.31.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.32.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.36.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.38.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.39.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.40.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.41.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.42.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.43.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.45.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.47.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.48.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.50.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.51.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.52.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.53.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.55.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.56.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.57.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.58.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.59.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.60.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.61.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.62.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.63.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.64.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.65.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.66.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.67.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.69.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.70.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.71.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.72.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.73.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.74.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.75.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.76.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.77.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.78.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.81.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.82.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.83.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.1.84.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.2.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.2.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.0.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.3.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.4.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.5.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.3.7.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.5.0.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.5.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.8.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.6.0.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.6.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.3.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.7.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.7.0.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.6.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.10.0.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.10.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.7.4.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.0.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.5.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.12.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.6.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.2.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.6.3.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.5.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.7.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.7.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.7.3.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.10.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.9.1.0 | Not specified |
| CNA | Cisco | Cisco Open Source Snort3 | affected 3.11.1.0 | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-opensr... | [email protected] | sec.cloudapps.cisco.com | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
Exploits
CNA: The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.
There are currently no legacy QID mappings associated with this CVE.