CVE-2022-20789

MediumCVSS 6.5/10Last modified Jun 17, 2026

Description

A vulnerability in the software upgrade process of Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an authenticated, remote attacker to write arbitrary files on the affected system. This vulnerability is due to improper restrictions applied to a system script. An attacker could exploit this vulnerability by using crafted variables during the execution of a system upgrade. A successful exploit could allow the attacker to overwrite or append arbitrary data to system files using root-level privileges.

Metrics

CVSS 3.1 6.5/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

Weakness enumeration

CWE-73 CWE-610

Affected software

No affected versions have been published.

Timeline

Published: Apr 21, 2022
Last modified: Jun 17, 2026
NVD status: Modified

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