CVE-2026-20246 Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability
An authenticated local attacker with vmadmin privileges can elevate to root via insufficient command validation in the CLI.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-20246?
CVE-2026-20246 is a medium-severity vulnerability in Cisco Umbrella Insights Virtual Appliance, published on 17 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official 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.
Weakness: CWE-269
Which versions are affected by CVE-2026-20246?
It affects 1 product.
Products include Cisco Umbrella Virtual Appliance.
How do I fix CVE-2026-20246?
No fix has been published for CVE-2026-20246 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-20246 being exploited?
There is no known exploitation of CVE-2026-20246 in the wild and no public exploit code.
Other vulnerabilities in Cisco Umbrella Insights Virtual Appliance
Sources
Also known as GHSA-4vh2-x3qw-x2qc.