CVE-2026-20267

Critical9.0Published on August 5, 2026

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 software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20267 are related to improper access control issues that are grouped under the Common Weakness Enumeration (CWE) Pillar CWE-284.

CVSS score9.0 / 10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Weakness type (CWE)CWE-284

Vendorscisco

Affected products

Vendors	Product	Versions
cisco	ios xe	16.6.2

Vulnerabilities

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Aug 6, 202609:172 min readRead

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