CVE-2026-20277

8.2 Élevée

Publiée le 02/09/2026 à 19:17 · Modifiée le 18/09/2026 à 15:17 · 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 IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20277 are related to protection mechanism failure issues that are grouped under the Common Weakness Enumeration (CWE) CWE-693.

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Produits concernés

Cisco IOS XR Software

Scores CVSS

Version	Score	Source	Vecteur
3.1	8.2 Élevée	psirt@cisco.com	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H`

Faiblesses (CWE)

CWE-693

Références

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-iosxr-qg64NcM
https://www.cve.org/Media/News/item/blog/2026/06/16/Preserving-Vulnerability-Level-Identification

Ailleurs

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