SB2026061767 - Privilege escalation in Cisco Umbrella Virtual Appliance
Published: June 17, 2026
Security Bulletin ID
SB2026061767
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper privilege management (CVE-ID: CVE-2026-20246)
CWE-ID: CWE-269 - Improper Privilege Management
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local privileged user to escalate privileges.
The vulnerability exists due to insufficient validation of user-supplied commands in the vmadmin CLI when processing user-supplied commands. A local privileged user can use certain commands at the CLI to escalate privileges.
A successful exploit could elevate privileges to root.
Remediation
Install update from vendor's website.