CVE-2026-69414 Microsoft Defender Elevation of Privilege Vulnerability

High 7.8 Published Updated

Attackers can exploit a flaw in the Microsoft Malware Protection Engine to gain elevated privileges on affected systems.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-69414?

CVE-2026-69414 is a high-severity vulnerability in Microsoft Malware Protection Engine, published on 14 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

Microsoft is aware of an elevation of privilege in the Microsoft Malware Protection Engine in Microsoft Defender publicly referred to as "ShieldBreak ".

Weakness: CWE-269, CWE-59

Which versions are affected by CVE-2026-69414?

It affects 1 product.

Products include Microsoft Malware Protection Engine.

How do I fix CVE-2026-69414?

No fix has been published for CVE-2026-69414 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-69414 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-69414 exists.

Public exploit code: 2 proofs of concept on GitHub.

Sources

Also known as GHSA-7whx-j8gf-3fxv.

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