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CVE-2026-20246

Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability

CVSS 6 MEDIUMEPSS 0.1%CWE-269
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6EPSS 0.1%KEV nãoPoC Nuclei Metasploit Patch
Lifecycle
17 Jun 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N