CVE-2025-21311: Windows NTLM V1 Elevation of Privilege Vulnerability
First published: Tue Jan 14 2025(Updated: )
Windows NTLM V1 Elevation of Privilege Vulnerability
Credit: secure@microsoft.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows Server 2025 | ||
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows Server 2025 | ||
| Microsoft Windows 11 | =24H2 | |
| Microsoft Windows Server 2022 23H2 | ||
| Microsoft Windows 11 Home Edition | <10.0.26100.2894 | |
| Microsoft Windows Server 2022 23H2 | <10.0.25398.1369 | |
| Microsoft Windows Server 2025 | <10.0.26100.2894 |
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Reference Links
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the severity of CVE-2025-21311?
CVE-2025-21311 has a severity rating of critical due to its potential for elevation of privilege on affected systems.
How do I fix CVE-2025-21311?
To fix CVE-2025-21311, ensure that you apply the patches provided in Microsoft's update guidance.
What products are affected by CVE-2025-21311?
CVE-2025-21311 affects Microsoft Windows Server 2025 and Windows 11 (24H2), among other related products.
What impact does CVE-2025-21311 have on my system?
CVE-2025-21311 can allow an attacker to elevate privileges, potentially compromising the integrity of the entire system.
Is CVE-2025-21311 a zero-day vulnerability?
CVE-2025-21311 is not classified as a zero-day vulnerability since patches are available to mitigate the risk.
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