CVE-2023-20266

MEDIUM

Cisco Emergency Responder, Unified CM, Unity Connection - Privilege Escalation via Crafted Upgrade File

Title source: llm
STIX 2.1

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.

Scores

CVSS v3 6.5
EPSS 0.0007
EPSS Percentile 21.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-269 CWE-347
Status published
Products (9)
cisco/emergency_responder 12.5.1su4
cisco/emergency_responder 12.5.1su8a
cisco/emergency_responder 14su3
cisco/unified_communications_manager 12.5.1su8 (2 CPE variants)
cisco/unity_connection 12.5\(1\)su6
cisco/unity_connection 12.5\(1\)su7
cisco/unity_connection 12.5\(1\)su8
cisco/unity_connection 14su2
cisco/unity_connection 14su3
Published Aug 30, 2023
Tracked Since Feb 18, 2026