CVE-2026-20273

8.6 Élevée

Publiée le 05/08/2026 à 19:16 · Modifiée le 03/10/2026 à 02:16 · Analysée par le NVD · Source : psirt@cisco.com

Description

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XE Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20273 are related to improper input validation issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-20.

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Produits concernés

Cisco IOS XE Software
Cisco ios xe

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.6 Élevée	psirt@cisco.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H`

Faiblesses (CWE)

CWE-20

Références

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxe-V8NMuMZJ Vendor Advisory
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification Not Applicable

Ailleurs

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