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CVE-2022-20855

HIGH CVSS: 7.9 Published: 2022-09-30 Modified: 2026-06-17

Description

A vulnerability in the self-healing functionality of Cisco IOS XE Software for Embedded Wireless Controllers on Catalyst Access Points could allow an authenticated, local attacker to escape the restricted controller shell and execute arbitrary commands on the underlying operating system of the access point. This vulnerability is due to improper checks throughout the restart of certain system processes. An attacker could exploit this vulnerability by logging on to an affected device and executing certain CLI commands. A successful exploit could allow the attacker to execute arbitrary commands on the underlying OS as root. To successfully exploit this vulnerability, an attacker would need valid credentials for a privilege level 15 user of the wireless controller.

Affected Platforms

Cisco Catalyst 9800-40Cisco Catalyst 9800-L-FCisco Catalyst 9120AxeCisco Catalyst 9120 ApCisco Catalyst 9117 ApCisco Catalyst 9120AxiCisco Catalyst 9117Cisco Catalyst 9120Cisco Catalyst 9117AxiCisco Catalyst 9800-L

Weakness Type

CWE-266, CWE-78

References