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CVE-2025-21418

nvd nist
Published: Feb 11, 2025Modified: Oct 27, 2025CISA KEV

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7.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Exploitability: 1.8 / Impact: 5.9
Source: secure@microsoft.com (Secondary)

Description

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Affected (18)

Microsoft
14 products
Windows 10 1607
Windows 10 1809
Windows 10 21h2
Windows 10 22h2
Windows 11 22h2
Windows 11 23h2
Windows 11 24h2
Windows Server 2008
Windows Server 2012
Windows Server 2016
Windows Server 2019
Windows Server 2022
Windows Server 2022 23h2
Windows Server 2025
Configuration A
18 vulnerable
Vulnerable SoftwareAffected Versions
Microsoft
Windows 10 1607
Before 10.0.10240.20915
Windows 10 1607
Before 10.0.10240.20915
Microsoft
Windows 10 1809
Before 10.0.17763.6893
Windows 10 1809
Before 10.0.17763.6893
Windows 10 21h2
Before 10.0.19044.5487
Windows 10 22h2
Before 10.0.19045.5487
Windows 11 22h2
Before 10.0.22621.4890
Windows 11 23h2
Before 10.0.22631.4890
Windows 11 24h2
Before 10.0.26100.3107
Microsoft
Windows Server 2008
All versions
Windows Server 2008
Version r2 sp1
Microsoft
Windows Server 2012
All versions
Windows Server 2012
Version r2
Windows Server 2016
Before 10.0.14393.7785
Windows Server 2019
Before 10.0.17763.6893
Windows Server 2022
Before 10.0.20348.3148
Windows Server 2022 23h2
Before 10.0.25398.1425
Windows Server 2025
Before 10.0.26100.3107

Related CWEs

CWE-122
Heap-based Buffer Overflow
A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

References (2)

Source: secure@microsoft.com
PatchVendor Advisory
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
US Government Resource

Timeline

No history available yet.