Unrated severityNVD Advisory· Published Jun 17, 2026· Updated Jun 17, 2026
Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability
CVE-2026-20246
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
1Patches
Vulnerability mechanics
References
1News mentions
1- Cisco: Six CVEs Across Four Products, Including Actively Exploited SD-WAN Zero-DayVypr Intelligence · Jun 17, 2026