CVE-2026-20246

MEDIUM

Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability

Title source: cna
STIX 2.1

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.

References (1)

Core 1

Scores

CVSS v3 6.0
EPSS 0.0010
EPSS Percentile 1.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-269
Status published
Products (50)
Cisco/Cisco Umbrella Insights Virtual Appliance 1.5.4
Cisco/Cisco Umbrella Insights Virtual Appliance 1.5.5
Cisco/Cisco Umbrella Insights Virtual Appliance 1.5.6
Cisco/Cisco Umbrella Insights Virtual Appliance 2.0.0
Cisco/Cisco Umbrella Insights Virtual Appliance 2.0.2
Cisco/Cisco Umbrella Insights Virtual Appliance 2.0.3
Cisco/Cisco Umbrella Insights Virtual Appliance 2.1.0
Cisco/Cisco Umbrella Insights Virtual Appliance 2.1.2
Cisco/Cisco Umbrella Insights Virtual Appliance 2.1.4
Cisco/Cisco Umbrella Insights Virtual Appliance 2.1.5
... and 40 more
Published Jun 17, 2026
Tracked Since Jun 17, 2026