CVE-2026-20065

Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability

En bref

Sévérité
MEDIUM 5.8
EPSS
EPSS 0.39 % · centile 33 (2026-10-27)
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
cisco
Statut NVD
Analyzed

Description

Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the binder module initialization logic of the Snort Detection Engine. An attacker could exploit this vulnerability by sending certain packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly.

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lcisco
CVSS 3.1MEDIUM 5.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LNVD · psirt@cisco.com (Secondary)

Faiblesses (CWE)

Références européennes

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Cisco · Cisco Secure Firewall Threat Defense (FTD) Softwareaffected 7.0.0 ; affected 7.0.0.1 ; affected 7.0.1 ; affected 7.1.0 ; affected 7.0.1.1 ; affected 7.1.0.1
Cisco · Cisco UTD SNORT IPS Engine Softwareaffected 17.3.1a ; affected 17.2.1r ; affected 17.3.2 ; affected 17.4.1a ; affected 17.5.1 ; affected 17.3.3

Références

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD