CVE-2025-27739

Published: Apr 8, 2025Modified: Jun 17, 2026

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

Untrusted pointer dereference in Windows Kernel allows an authorized attacker to elevate privileges locally.

Affected (11)

Products: Microsoft: Windows 10 1809, Windows 10 21h2, Windows 10 22h2, Windows 11 22h2, Windows 11 23h2, Windows 11 24h2, Windows Server 2019, Windows Server 2022, Windows Server 2022 23h2, Windows Server 2025

10 products

Windows 10 1809

Windows 10 21h2

Windows 10 22h2

Windows 11 22h2

Windows 11 23h2

Windows 11 24h2

Windows Server 2019

Windows Server 2022

Windows Server 2022 23h2

Windows Server 2025

Configuration A

11 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 1809	version < 10.0.17763.7136
Microsoft Windows 10 1809	version < 10.0.17763.7136
Microsoft Windows 10 21h2	version < 10.0.19044.5737
Microsoft Windows 10 22h2	version < 10.0.19045.5737
Microsoft Windows 11 22h2	version < 10.0.22621.5189
Microsoft Windows 11 23h2	version < 10.0.22631.5189
Microsoft Windows 11 24h2	version < 10.0.26100.3775
Microsoft Windows Server 2019	version < 10.0.17763.7136
Microsoft Windows Server 2022	version < 10.0.20348.3453
Microsoft Windows Server 2022 23h2	version < 10.0.25398.1551
Microsoft Windows Server 2025	version < 10.0.26100.3775

Related CWEs

Untrusted Pointer Dereference

The product obtains a value from an untrusted source, converts this value to a pointer, and dereferences the resulting pointer.

References (1)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27739

Source: secure@microsoft.com

Vendor Advisory

Timeline

No history available yet.