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Medium · 6.0 CVE-2026-20246 EUVD-2026-37751GHSA-4vh2-x3qw-x2qc

Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability

Published Jun 17, 2026 · Updated Jun 17, 2026 · Assigned by cisco

Description

A vulnerability in the vmadmin CLI of Cisco Umbrella Virtual Appliance could allow an authenticated, local attacker to elevate privileges on an affected device.

This vulnerability is due to insufficient validation of user-supplied commands. An attacker with vmadmin privileges could exploit this vulnerability by using certain commands at the CLI. A successful exploit could allow the attacker to elevate privileges to root.

Affected products

VendorProductAffectedFixed
Cisco Cisco Umbrella Insights Virtual Appliance 2.6.0, 2.5.6, 2.5, 2.4.12, 2.7, 2.6.2, 2.5.5, 2.5.4, 2.8, 2.6.1, 2.5.7, 1.5.4, 1.5.5, 1.5.6, 2.0.0, 2.0.2, 2.0.3, 2.1.0, 2.1.2, 2.1.4, 2.1.5, 2.2, 2.2.1, 2.3, 2.3.1, 2.4, 2.4.4, 2.4.6, 2.8.9, 3.0, 3.1, 3.2, 2.8.1, 2.8.2, 2.8.3, 2.8.4, 2.8.5, 3.0.1, 3.0.2, 3.0.4, 3.0.5, 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3… —

References