CVE-2026-21709

Severity CVSS v4.0:

Pending analysis

Type:

CWE-77 Command Injection

Publication date:

17/04/2026

Last modified:

20/04/2026

Description

A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x

6.70

Severity 3.x

MEDIUM

References to Advisories, Solutions, and Tools

https://www.veeam.com/kb4830
https://www.veeam.com/kb4831