CVE-2025-26633: Microsoft Windows Management Console (MMC) Improper Neutralization Vulnerability
First published: Tue Mar 11 2025(Updated: )
<p>Improper neutralization in Microsoft Management Console allows an unauthorized attacker to bypass a security feature locally.</p>
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows Server | ||
| Windows 11 | =24H2 | |
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2025 | ||
| Windows 11 | =22H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server 2019 | ||
| Windows 11 | =24H2 | |
| Windows 11 | =23H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2025 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server | ||
| Microsoft Windows Server 2012 R2 | ||
| Microsoft Windows Server | ||
| Windows 11 | =22H2 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server 2008 R2 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2016 | ||
| Microsoft Windows | ||
| Microsoft Windows 10 | <10.0.10240.20947 | |
| Microsoft Windows 10 | <10.0.10240.20947 | |
| Microsoft Windows 10 | <10.0.14393.7876 | |
| Microsoft Windows 10 | <10.0.14393.7876 | |
| Microsoft Windows 10 | <10.0.17763.7009 | |
| Microsoft Windows 10 | <10.0.17763.7009 | |
| Microsoft Windows 10 | <10.0.19044.5608 | |
| Microsoft Windows 10 | <10.0.19044.5608 | |
| Microsoft Windows 10 | <10.0.19044.5608 | |
| Microsoft Windows 10 | <10.0.19045.5608 | |
| Microsoft Windows 10 | <10.0.19045.5608 | |
| Microsoft Windows 10 | <10.0.19045.5608 | |
| Windows 11 | <10.0.22621.5039 | |
| Windows 11 | <10.0.22621.5039 | |
| Windows 11 | <10.0.22631.5039 | |
| Windows 11 | <10.0.22631.5039 | |
| Windows 11 | <10.0.26100.3403 | |
| Windows 11 | <10.0.26100.3403 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =sp2 | |
| Microsoft Windows Server | =r2-sp1 | |
| Microsoft Windows Server | ||
| Microsoft Windows Server | =r2 | |
| Microsoft Windows Server 2016 | ||
| Microsoft Windows Server 2019 | ||
| Microsoft Windows Server 2022 | <10.0.20348.3270 | |
| Microsoft Windows Server 2022 | <10.0.25398.1486 | |
| Microsoft Windows Server 2025 | <10.0.26100.3403 | |
| Microsoft Windows Server 2022 | ||
| Microsoft Windows Server 2022 | ||
| Windows 10 | =1809 | |
| Windows 10 | =1809 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =22H2 | |
| Windows 10 | =1607 | |
| Windows 10 | =1607 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | =21H2 | |
| Windows 10 | ||
| Windows 10 |
Remedy
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
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Reference Links
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26633 (Advisory)
- https://www.theregister.com/2025/03/12/patch_tuesday/
- https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-26633
- https://nvd.nist.gov/vuln/detail/CVE-2025-26633
- https://www.bleepingcomputer.com/news/security/encrypthub-linked-to-zero-day-attacks-targeting-windows-systems/
Frequently Asked Questions
What is the severity of CVE-2025-26633?
CVE-2025-26633 has a high severity rating as it allows unauthorized attackers to bypass security features locally in Microsoft Management Console.
How do I fix CVE-2025-26633?
To remediate CVE-2025-26633, apply the latest security patches provided by Microsoft for your affected Windows product.
Which software versions are affected by CVE-2025-26633?
CVE-2025-26633 impacts several Microsoft products including various versions of Windows Server and Windows 10, 11.
Can CVE-2025-26633 be exploited remotely?
No, CVE-2025-26633 is a local attack vulnerability, meaning it requires local access to the affected system to exploit.
What are the potential impacts of CVE-2025-26633 if exploited?
Exploitation of CVE-2025-26633 could lead to unauthorized access to sensitive configurations and management actions on the affected Windows system.
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