CVE-2026-20246
Medium
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.
SeverityMedium
CVSS6.0
Exploit probability—
Product
Cisco Umbrella Virtual Appliance
PublishedJun 17, 2026
First seenJun 17, 2026
Weakness typeCWE-269Improper privilege management
How to fix
Update
- cisco umbrella_virtual_appliance3.8.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco umbrella_virtual_appliance | v < 3.8.5 | 3.8.5 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.