CVE WatchAug 14, 2026

CVE-2015-2546

Microsoft Win32k Memory Corruption Vulnerability

CVSS

8.2

High

EPSS

10.9%

p96

KEV

YES

Mar 15, 2022

Exploit Today

0-100

Published: Sep 9, 2015 · Last modified: Aug 14, 2026 · CWE-119

EPSS · 30d

10.9%EPSS · 30 days10.9%

2026-08-022026-08-31

KEV catalog record

Product

Microsoft / Win32k

Vulnerability

Microsoft Win32k Memory Corruption Vulnerability

Added to KEV

Mar 15, 2022

Remediate by

Apr 5, 2022

Known ransomware use

Yes

Summary description

The kernel-mode driver in Microsoft Windows OS and Server allows local users to gain privileges via a crafted application.

Required action

Apply updates per vendor instructions.

Notes

https://nvd.nist.gov/vuln/detail/CVE-2015-2546

Technical description

The kernel-mode driver in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Win32k Memory Corruption Elevation of Privilege Vulnerability," a different vulnerability than CVE-2015-2511, CVE-2015-2517, and CVE-2015-2518.

Official references

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