PT-2026-84811 · Cisco · Ios Xr

CVE-2026-20279

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Published

2026-09-02

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Updated

2026-09-06

CVSS v3.1

9.8

Critical

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions Cisco IOS XR Software (affected versions not specified)
Description Improper access control issues exist within the software, which are categorized under Common Weakness Enumeration (CWE) CWE-284. This refers to a situation where the software does not properly restrict access to a resource, potentially allowing unauthorized users to perform actions or access data they should not be able to.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Improper Access Control

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Weakness Enumeration

Related Identifiers

CVE-2026-20279

Affected Products

Ios Xr