Improper privilege management in Cisco Umbrella Virtual Appliance - CVE-2026-20246
Published: June 17, 2026 / Updated: June 17, 2026
Vulnerability identifier: #VU134759
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-20246
CWE-ID: CWE-269
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Umbrella Virtual Appliance
Cisco Umbrella Virtual Appliance
Detailed vulnerability description
The vulnerability allows a local privileged user to escalate privileges.
The vulnerability exists due to insufficient validation of user-supplied commands in the vmadmin CLI when processing user-supplied commands. A local privileged user can use certain commands at the CLI to escalate privileges.
A successful exploit could elevate privileges to root.
How to mitigate CVE-2026-20246
Install security update from vendor's website.