CVE-2026-20046 (GCVE-0-2026-20046)

Vulnerability from cvelistv5 – Published: 2026-03-11 16:31 – Updated: 2026-03-12 03:55
VLAI?
Title
Cisco IOS XR Software CLI Privilege Escalation Vulnerability
Summary
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.
Severity ?
8.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-264 - Permissions, Privileges, and Access Control
Assigner
References
Impacted products
Vendor Product Version
Cisco Cisco IOS XR Software Affected: 6.6.1
Affected: 6.5.3
Affected: 7.0.1
Affected: 6.5.1
Affected: 6.5.2
Affected: 6.6.2
Affected: 6.6.25
Affected: 7.1.1
Affected: 7.0.90
Affected: 6.6.3
Affected: 7.0.2
Affected: 7.1.2
Affected: 7.2.1
Affected: 6.6.4
Affected: 7.3.1
Affected: 7.4.1
Affected: 7.2.2
Affected: 7.3.2
Affected: 7.5.1
Affected: 7.6.1
Affected: 7.5.2
Affected: 7.3.4
Affected: 7.3.3
Affected: 7.4.2
Affected: 7.7.1
Affected: 7.6.2
Affected: 7.8.1
Affected: 7.7.2
Affected: 7.9.1
Affected: 7.8.2
Affected: 7.5.4
Affected: 7.8.22
Affected: 7.10.1
Affected: 7.7.21
Affected: 7.9.2
Affected: 7.5.5
Affected: 7.11.1
Affected: 7.10.2
Affected: 7.3.6
Affected: 24.1.1
Affected: 7.11.2
Affected: 24.2.1
Affected: 24.1.2
Affected: 24.3.1
Affected: 24.4.1
Affected: 24.2.2
Affected: 7.11.21
Affected: 24.2.20
Affected: 24.3.2
Affected: 24.4.2
Affected: 25.1.1
Affected: 24.3.20
Affected: 25.2.1
Affected: 25.1.2
Affected: 24.3.30
Affected: 24.2.21
Affected: 25.1.30
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.