CVE-2025-26633 Microsoft Windows Management Console (MMC) Improper Neutralization

Exploited in the wild High 7.0 Published Updated

An attacker can bypass security features in Microsoft Management Console locally, requiring a patch for Windows systems.

Exploited in the wild
Since 11 Mar 2025
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2025-26633?

CVE-2025-26633 is a high-severity vulnerability in Microsoft Windows 10 1507, published on 11 Mar 2025. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Improper neutralization in Microsoft Management Console allows an unauthorized attacker to bypass a security feature locally.

Weakness: CWE-707

Which versions are affected by CVE-2025-26633?

It affects 15 products.

Products include Microsoft Windows 10 1507, Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21h2, Microsoft Windows 10 22h2, Microsoft Windows 11 22h2 and 9 more.

How do I fix CVE-2025-26633?

No fix has been published for CVE-2025-26633 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 1 Apr 2025.

Is CVE-2025-26633 being exploited?

Yes. Attackers have exploited CVE-2025-26633 in the wild since at least 11 Mar 2025, including in ransomware campaigns.

Public exploit code: 1 Exploit-DB entry and 2 proofs of concept on GitHub.

All Microsoft Windows 10 1507 vulnerabilities

Sources

Also known as GHSA-8xfh-434c-qfv7.

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