CVE-2026-20043

9.0 Critique

Publiée le 21/10/2026 à 19:18 · Modifiée le 21/10/2026 à 20:54 · En attente d'analyse NVD · Source : psirt@cisco.com

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco owned Open Source Snort 3 Software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20043 are related to issues concerning out-of-bounds writes that are grouped under the Common Weakness Enumeration (CWE) Base CWE-787.

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Produits concernés

Cisco Cyber Vision
Cisco Open Source Snort3
Cisco Secure Firewall Threat Defense (FTD) Software
Cisco UTD SNORT IPS Engine Software

Scores CVSS

Version	Score	Source	Vecteur
3.1	9.0 Critique	psirt@cisco.com (NVD)	`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H`

Faiblesses (CWE)

CWE-787

Références

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-snort3-ybgmhTQe

Ailleurs

NVD
CVE.org
CIRCL Vulnerability-Lookup
CERT-FR
GitHub Advisories