CVE-2026-21709
Received Received - Intake
Bypass of Windows Driver Signature Enforcement via Local Privilege Escalation

Publication date: 2026-04-17

Last updated on: 2026-04-20

Assigner: HackerOne

Description
A vulnerability allowing a local attacker with administrator privileges to bypass Windows Driver Signature Enforcement.
CVSS Scores
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Meta Information
Published
2026-04-17
Last Modified
2026-04-20
Generated
2026-05-06
AI Q&A
2026-04-17
EPSS Evaluated
2026-05-05
NVD
CVE-2026-21709
EUVD
EUVD-2026-23438
Affected Vendors & Products
Currently, no data is known.
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-77 The product constructs all or part of a command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended command when it is sent to a downstream component.
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability allows a local attacker who already has administrator privileges on a Windows system to bypass the Windows Driver Signature Enforcement mechanism.


How can this vulnerability impact me? :

By bypassing Windows Driver Signature Enforcement, an attacker with administrator access could load unsigned or malicious drivers onto the system, potentially compromising system integrity and security.


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0/70
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