Medium [CVE-2026-20246] Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability
This medium-severity Cisco advisory covers CVE-2026-20246 affecting Umbrella Insights Virtual Appliance.
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Summary
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.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Affected product named by the advisory: Umbrella Insights Virtual Appliance.
- Scope: At the time of publication, this vulnerability affected Cisco Umbrella Virtual Appliance, regardless of device configuration.
- Release Earlier than 3.8.5 (first fixed: 3.8.5)
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Upgrade to the first fixed release for your train per the Fixed Releases table in this advisory.
- Earlier than 3.8.5: upgrade to 3.8.5.
- There are no workarounds that address this vulnerability.
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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