Riskcovery

CVE-2026-20046

Cisco IOS XR Software CLI Privilege Escalation Vulnerability

State
Published
Severity
8.8 High
Published
Mar 11, 2026
Updated
Mar 12, 2026
Reserved
Oct 8, 2025

Read the record on cve.org

Description

A vulnerability in task group assignment for a specific CLI command in Cisco IOS XR Software could allow an authenticated, local attacker to elevate privileges and gain full administrative control of an affected device.

This vulnerability is due to incorrect mapping of a command to task groups within the source code. An attacker with a low-privileged account could exploit this vulnerability by using the CLI command to bypass the task group–based checks. A successful exploit could allow the attacker to elevate privileges and perform actions on an affected device without authorization checks.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:Hcisco

Weaknesses

  • CWE-264 Permissions, Privileges, and Access Control

Affected Products

ProductVersions
Cisco IOS XR SoftwareCisco
  • 6.6.1Affected
  • 6.5.3Affected
  • 7.0.1Affected
  • 6.5.1Affected
  • 6.5.2Affected
  • 6.6.2Affected
  • 6.6.25Affected
  • 7.1.1Affected
  • 7.0.90Affected
  • 6.6.3Affected
  • 7.0.2Affected
  • 7.1.2Affected
  • 7.2.1Affected
  • 6.6.4Affected
  • 7.3.1Affected
  • 7.4.1Affected
  • 7.2.2Affected
  • 7.3.2Affected
  • 7.5.1Affected
  • 7.6.1Affected
  • 7.5.2Affected
  • 7.3.4Affected
  • 7.3.3Affected
  • 7.4.2Affected
  • 7.7.1Affected
  • and 32 more versions

References

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