How severe is CVE-2026-20246?

CVE-2026-20246 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2026-20246 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-20246?

CVE-2026-20246 affects Cisco Umbrella Virtual Appliance. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-20246?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-20246 have an EU (EUVD) identifier?

Yes. CVE-2026-20246 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37751.

When was CVE-2026-20246 published?

CVE-2026-20246 was published on 2026-06-17 and last updated on 2026-06-22.

CVE-2026-20246

CVE-2026-20246 is a medium-severity vulnerability in Cisco Umbrella Virtual Appliance with a CVSS 3.x base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-269.

Key facts

Severity: Medium (CVSS 3.x base score 6.0)
EPSS exploit prediction: 0% (1st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-37751
Weakness: CWE-269
Affected product: Cisco Umbrella Virtual Appliance
Published: 2026-06-17
Last modified: 2026-06-22

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.

Frequently asked questions

What is CVE-2026-20246?: 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.
How severe is CVE-2026-20246?: CVE-2026-20246 has a CVSS 3.x base score of 6.0, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2026-20246 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (1st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-20246?: CVE-2026-20246 affects Cisco Umbrella Virtual Appliance. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-20246?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-20246 have an EU (EUVD) identifier?: Yes. CVE-2026-20246 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-37751.
When was CVE-2026-20246 published?: CVE-2026-20246 was published on 2026-06-17 and last updated on 2026-06-22.

References

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

Affected products (1)

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

More vulnerabilities in Cisco Umbrella Virtual Appliance

CVE-2017-12350 — High (CVSS 8.2): A vulnerability in Cisco Umbrella Insights Virtual Appliances 2.1.0 and earlier could allow an authenticated, local…
CVE-2022-20773 — High (CVSS 7.5): A vulnerability in the key-based SSH authentication mechanism of Cisco Umbrella Virtual Appliance (VA) could allow an…
CVE-2017-6679 — Medium (CVSS 6.4): The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented encrypted remote support tunnel…
CVE-2022-20922 — Medium (CVSS 5.8): Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on…

All CVEs affecting Cisco Umbrella Virtual Appliance →

Other CWE-269 (Improper Privilege Management) vulnerabilities

CVE-2026-31852 — Critical (CVSS 10.0): Jellyfin is an open-source media system. The code-quality.yml GitHub Actions workflow in jellyfin/jellyfin-ios is…
CVE-2025-20282 — Critical (CVSS 10.0): A vulnerability in an internal API of Cisco ISE and Cisco ISE-PIC could allow an unauthenticated, remote attacker to…
CVE-2025-0505 — Critical (CVSS 10.0): On Arista CloudVision systems (virtual or physical on-premise deployments), Zero Touch Provisioning can be used to gain…
CVE-2023-48418 — Critical (CVSS 10.0): In checkDebuggingDisallowed of DeviceVersionFragment.java, there is a possible way to access adb before SUW…
CVE-2023-48419 — Critical (CVSS 10.0): An attacker in the wifi vicinity of a target Google Home can spy on the victim, resulting in Elevation of Privilege
CVE-2023-31273 — Critical (CVSS 10.0): Protection mechanism failure in some Intel DCM software before version 5.2 may allow an unauthenticated user to…

Browse all CWE-269 (Improper Privilege Management) vulnerabilities →