CVE-2021-28310

HIGH KEV

Windows 10 and Windows Server - Elevation of Privilege via Win32k Out-of-bounds Write

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2021-28310 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added November 3, 2021. EIP tracks 1 public exploit from researchers including Rafael-Svechinskaya.

Description

Win32k Elevation of Privilege Vulnerability

Exploits (1)

Scores

CVSS v3 7.8
EPSS 0.0833
EPSS Percentile 94.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact total

Details

CISA KEV 2021-11-03
VulnCheck KEV 2021-04-13
InTheWild.io 2021-04-13
ENISA EUVD EUVD-2021-14995
CWE
CWE-787
Status published
Products (9)
microsoft/windows_10_1803
microsoft/windows_10_1809
microsoft/windows_10_1909
microsoft/windows_10_2004
microsoft/windows_10_20h2
microsoft/windows_server_1909
microsoft/windows_server_2004
microsoft/windows_server_2019
microsoft/windows_server_20h2
Published Apr 13, 2021
KEV Added Nov 03, 2021
Tracked Since Feb 18, 2026