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.
Published 2022-09-30 19:15:13
Updated 2022-10-27 15:47:45
View at NVD,   CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2022-20855

0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-20855

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
7.9
HIGH CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
1.5
5.8
Cisco Systems, Inc.
6.7
MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
0.8
5.9
NIST

CWE ids for CVE-2022-20855

References for CVE-2022-20855

Products affected by CVE-2022-20855

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