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CVE-2026-20246

Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability

Published: Jun 17, 2026Updated: Jun 22, 2026 Sources: CVE List NVDCWE-269
NVD MITRE
6.0CVSSMEDIUM
EPSS Score
0.1%
Top 98.8%
CISA KEV
Not in KEV
Exploits
0 Known
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:LPR:HUI:NS:UC:HI:HA:N
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-269

Affected Products

Cisco Umbrella Insights Virtual ApplianceCisco
On-prem
Networking Infrastructure / router-switch
umbrella virtual appliancecisco
On-prem
Networking Infrastructure / router-switch
ciscocommercialUSNetworking Infrastructureaka cisco systems, cisco systems inc.

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

0 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

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

Timeline

Published
Jun 17, 2026
Last Updated
Jun 22, 2026

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