CVE-2026-20246

Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability

Published Jun 17, 2026 CVSS 3.1 · 6 Medium EPSS < 1% KEV · Not listed

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.

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Cisco

Cisco Umbrella Insights Virtual Appliance

unknown

Version	Status	Constraints
`2.6.0`	affected	—
`2.5.6`	affected	—
`2.5`	affected	—
`2.4.12`	affected	—
`2.7`	affected	—
`2.6.2`	affected	—
`2.5.5`	affected	—
`2.5.4`	affected	—
`2.8`	affected	—
`2.6.1`	affected	—
`2.5.7`	affected	—
`1.5.4`	affected	—
`1.5.5`	affected	—
`1.5.6`	affected	—
`2.0.0`	affected	—
`2.0.2`	affected	—
`2.0.3`	affected	—
`2.1.0`	affected	—
`2.1.2`	affected	—
`2.1.4`	affected	—
`2.1.5`	affected	—
`2.2`	affected	—
`2.2.1`	affected	—
`2.3`	affected	—
`2.3.1`	affected	—
`2.4`	affected	—
`2.4.4`	affected	—
`2.4.6`	affected	—
`2.8.9`	affected	—
`3.0`	affected	—
`3.1`	affected	—
`3.2`	affected	—
`2.8.1`	affected	—
`2.8.2`	affected	—
`2.8.3`	affected	—
`2.8.4`	affected	—
`2.8.5`	affected	—
`3.0.1`	affected	—
`3.0.2`	affected	—
`3.0.4`	affected	—
`3.0.5`	affected	—
`3.1.1`	affected	—
`3.1.2`	affected	—
`3.1.3`	affected	—
`3.1.4`	affected	—
`3.2.1`	affected	—
`3.2.2`	affected	—
`3.2.3`	affected	—
`3.3`	affected	—
`3.3.1`	affected	—
`3.3.2`	affected	—
`3.3.3`	affected	—
`3.3.4`	affected	—
`3.4`	affected	—
`3.4.1`	affected	—
`3.4.2`	affected	—
`3.4.3`	affected	—
`3.4.4`	affected	—
`3.4.5`	affected	—
`3.4.6`	affected	—
`3.5`	affected	—
`2.7.1`	affected	—
`2.7.2`	affected	—
`2.7.6`	affected	—
`2.7.9`	affected	—
`2.7.10`	affected	—
`3.5.1`	affected	—
`3.5.2`	affected	—
`3.6.1`	affected	—
`3.6.2`	affected	—
`3.7`	affected	—
`3.7.1`	affected	—
`3.8.3`	affected	—

Configuration 1 [-]

cpe:2.3:a:cisco:umbrella_virtual_appliance:*:*:*:*:*:*:*:*

No data.

Vendor Product Versions

Cisco

Umbrella Insights Virtual Appliance

Version	Status	Scheme	Platform
`2.6.0`	affected	semver	—
`2.5.6`	affected	semver	—
`2.5`	affected	generic	—
`2.4.12`	affected	semver	—
`2.7`	affected	generic	—
`2.6.2`	affected	semver	—
`2.5.5`	affected	semver	—
`2.5.4`	affected	semver	—
`2.8`	affected	generic	—
`2.6.1`	affected	semver	—
`2.5.7`	affected	semver	—
`1.5.4`	affected	semver	—
`1.5.5`	affected	semver	—
`1.5.6`	affected	semver	—
`2.0.0`	affected	semver	—
`2.0.2`	affected	semver	—
`2.0.3`	affected	semver	—
`2.1.0`	affected	semver	—
`2.1.2`	affected	semver	—
`2.1.4`	affected	semver	—
`2.1.5`	affected	semver	—
`2.2`	affected	generic	—
`2.2.1`	affected	semver	—
`2.3`	affected	generic	—
`2.3.1`	affected	semver	—
`2.4`	affected	generic	—
`2.4.4`	affected	semver	—
`2.4.6`	affected	semver	—
`2.8.9`	affected	semver	—
`3.0`	affected	generic	—
`3.1`	affected	generic	—
`3.2`	affected	generic	—
`2.8.1`	affected	semver	—
`2.8.2`	affected	semver	—
`2.8.3`	affected	semver	—
`2.8.4`	affected	semver	—
`2.8.5`	affected	semver	—
`3.0.1`	affected	semver	—
`3.0.2`	affected	semver	—
`3.0.4`	affected	semver	—
`3.0.5`	affected	semver	—
`3.1.1`	affected	semver	—
`3.1.2`	affected	semver	—
`3.1.3`	affected	semver	—
`3.1.4`	affected	semver	—
`3.2.1`	affected	semver	—
`3.2.2`	affected	semver	—
`3.2.3`	affected	semver	—
`3.3`	affected	generic	—
`3.3.1`	affected	semver	—
`3.3.2`	affected	semver	—
`3.3.3`	affected	semver	—
`3.3.4`	affected	semver	—
`3.4`	affected	generic	—
`3.4.1`	affected	semver	—
`3.4.2`	affected	semver	—
`3.4.3`	affected	semver	—
`3.4.4`	affected	semver	—
`3.4.5`	affected	semver	—
`3.4.6`	affected	semver	—
`3.5`	affected	generic	—
`2.7.1`	affected	semver	—
`2.7.2`	affected	semver	—
`2.7.6`	affected	semver	—
`2.7.9`	affected	semver	—
`2.7.10`	affected	semver	—
`3.5.1`	affected	semver	—
`3.5.2`	affected	semver	—
`3.6.1`	affected	semver	—
`3.6.2`	affected	semver	—
`3.7`	affected	generic	—
`3.7.1`	affected	semver	—
`3.8.3`	affected	generic	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.104% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-priv-esc-F4wJB7AU

History

Jun 19, 2026 9:45 AM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Cisco Cisco umbrella Insights Virtual Appliance
Vendors & Products		Cisco Cisco umbrella Insights Virtual Appliance

Jun 18, 2026 4:45 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
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.
Title		Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability
Weaknesses		CWE-269
References		https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-priv-esc-F4wJB7AU
Metrics		cvssV3_1 `{'score': 6, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N'}` ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`