CVE-2026-20246

Name: CVE-2026-20246
Creator: NVD / NIST
Published: 2026-06-17T17:16:43.423+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6/10EPSS 0.10%

Last modified Jun 22, 2026

CVE-2026-20246 is a medium-severity vulnerability rated 6/10 on the CVSS scale. 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. EPSS estimates a 0.10% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6/10

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.10%

1.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Cisco	Umbrella Virtual Appliance	< 3.8.5

References

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-priv-esc-F4wJB7AUVendor Advisory

Timeline

Published: Jun 17, 2026
Last Modified: Jun 22, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-20246?

How severe is CVE-2026-20246?

CVE-2026-20246 has a CVSS score of 6/10 (MEDIUM severity). The EPSS model estimates a 0.10% probability of exploitation in the next 30 days.

How do I fix CVE-2026-20246?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20246?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST