CVE-2023-20266

HighCVSS 7.2/10Last modified Jun 17, 2026

Description

A vulnerability in Cisco Emergency Responder, Cisco Unified Communications Manager (Unified CM), Cisco Unified Communications Manager Session Management Edition (Unified CM SME), and Cisco Unity Connection could allow an authenticated, remote attacker to elevate privileges to root on an affected device. This vulnerability exists because the application does not properly restrict the files that are being used for upgrades. An attacker could exploit this vulnerability by providing a crafted upgrade file. A successful exploit could allow the attacker to elevate privileges to root. To exploit this vulnerability, the attacker must have valid platform administrator credentials on an affected device.

Metrics

CVSS 3.1 7.2/10CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-347CWE-269

Affected software

No affected versions have been published.

Timeline

Published
Aug 30, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-20266: High severity, CVSS 7.2 | Vulnix