6.5
CVSSv3

CVE-2022-20789

Published: 21/04/2022 Updated: 07/11/2023
CVSS v2 Base Score: 8.5 | Impact Score: 9.2 | Exploitability Score: 8
CVSS v3 Base Score: 6.5 | Impact Score: 5.2 | Exploitability Score: 1.2
VMScore: 758
Vector: AV:N/AC:L/Au:S/C:N/I:C/A:C

Vulnerability Summary

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 malicious user 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 malicious user to overwrite or append arbitrary data to system files using root-level privileges.

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cisco unified communications manager 12.5\\(1\\)

cisco unified communications manager 14.0

Vendor Advisories

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 syste ...