CVE-2021-28310

Published: Apr 13, 2021Modified: Oct 30, 2025CISA KEV

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: NVD (Secondary)

Description

Win32k Elevation of Privilege Vulnerability

Affected (9)

Products: Microsoft: Windows 10 1803, Windows 10 1809, Windows 10 1909, Windows 10 2004, Windows 10 20h2, Windows Server 1909, Windows Server 2004, Windows Server 2019, Windows Server 20h2

9 products

Windows 10 1803

Windows 10 1809

Windows 10 1909

Windows 10 2004

Windows 10 20h2

Windows Server 1909

Windows Server 2004

Windows Server 2019

Windows Server 20h2

Configuration A

9 vulnerable

Vulnerable Software	Affected Versions
Microsoft Windows 10 1803	All versions
Microsoft Windows 10 1809	All versions
Microsoft Windows 10 1909	All versions
Microsoft Windows 10 2004	All versions
Microsoft Windows 10 20h2	All versions
Microsoft Windows Server 1909	All versions
Microsoft Windows Server 2004	All versions
Microsoft Windows Server 2019	All versions
Microsoft Windows Server 20h2	All versions

Related CWEs

Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

References (3)

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28310

Source: secure@microsoft.com

PatchVendor Advisory

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-28310

Source: af854a3a-2127-422b-91ae-364da2661108

PatchVendor Advisory

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28310

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

US Government Resource

Timeline

No history available yet.