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TI-2026-16437 Aliases CVE-2026-20246GHSA-4vh2-x3qw-x2qc

Cisco Umbrella Virtual Appliance Privilege Escalation Vulnerability

Priority LOW 28CWE-269Published · Updated

Key facts

Attack vector
Local
Privileges required
High
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
Confidentiality · integrity · availability
High · High · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-269.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00104 1st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Umbrella Insights Virtual Appliance2.6.0; 2.5.6; 2.5; 2.4.12; 2.7; 2.6.2; 2.5.5; 2.5.4; 2.8; 2.6.1; 2.5.7; 1.5.4; 1.5.5; 1.5.6; 2.0.0; 2.0.2; 2.0.3; 2.1.0; 2.1.2; 2.1.4; 2.1.5; 2.2; 2.2.1; 2.3; 2.3.1; 2.4; 2.4.4; 2.4.6; 2.8.9; 3.0; 3.1; 3.2; 2.8.1; 2.8.2; 2.8.3; 2.8.4; 2.8.5; 3.0.1; 3.0.2; 3.0.4; 3.0.5; 3.1.1; 3.1.2; 3.1.3; 3.1.4; 3.2.1; 3.2.2; 3.2.3; 3.3; 3.3.1; 3.3.2; 3.3.3; 3.3.4; 3.4; 3.4.1; 3.4.2; 3.4.3; 3.4.4; 3.4.5; 3.4.6; 3.5; 2.7.1; 2.7.2; 2.7.6; 2.7.9; 2.7.10; 3.5.1; 3.5.2; 3.6.1; 3.6.2; 3.7; 3.7.1; 3.8.3—No fix listedCNA
  • Cisco Umbrella Insights Virtual Appliance VendorCisco Affected 2.6.0; 2.5.6; 2.5; 2.4.12; 2.7; 2.6.2; 2.5.5; 2.5.4; 2.8; 2.6.1; 2.5.7; 1.5.4; 1.5.5; 1.5.6; 2.0.0; 2.0.2; 2.0.3; 2.1.0; 2.1.2; 2.1.4; 2.1.5; 2.2; 2.2.1; 2.3; 2.3.1; 2.4; 2.4.4; 2.4.6; 2.8.9; 3.0; 3.1; 3.2; 2.8.1; 2.8.2; 2.8.3; 2.8.4; 2.8.5; 3.0.1; 3.0.2; 3.0.4; 3.0.5; 3.1.1; 3.1.2; 3.1.3; 3.1.4; 3.2.1; 3.2.2; 3.2.3; 3.3; 3.3.1; 3.3.2; 3.3.3; 3.3.4; 3.4; 3.4.1; 3.4.2; 3.4.3; 3.4.4; 3.4.5; 3.4.6; 3.5; 2.7.1; 2.7.2; 2.7.6; 2.7.9; 2.7.10; 3.5.1; 3.5.2; 3.6.1; 3.6.2; 3.7; 3.7.1; 3.8.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisco:umbrella_virtual_appliance:*:*:*:*:*:*:*:*before 3.8.5VulnerableCisco
  • cpe:2.3:a:cisco:umbrella_virtual_appliance:*:*:*:*:*:*:*:* Versions before 3.8.5 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-20246
  2. 2026-10-03 Alias added: GHSA-4vh2-x3qw-x2qc

References

Advisory 1

  • TI-2022-05332 Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability CVSS 3.1HIGH 7.5
  • TI-2017-09122 Hard-coded credentials in Cisco Umbrella Insights Virtual Appliance CVSS 3.0HIGH 8.2
  • TI-2022-05481 Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the… CVSS 3.1MEDIUM 6.5
  • TI-2017-04435 The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented… CVSS 3.1MEDIUM 6.4

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences