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CVE-2015-2546

8.2
HIGHCVSS v3.1 Base Score
40.56%
MEDIUM RiskEPSS (97th percentile)
KEV

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.

Published: 9/9/2015
Modified: 4/22/2026
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ACTIVELY EXPLOITED IN THE WILD

This vulnerability is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

Vulnerability Name:

Microsoft Win32k Memory Corruption Vulnerability

Vendor / Product:

Microsoft Win32k

Required Action:

Apply updates per vendor instructions.

Due Date: 4/5/2022(OVERDUE)
Ransomware Campaign Use
Added to KEV:

3/15/2022

Notes:

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

Vulnerability Summary

CVSS v3 Score

8.2HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

CVSS v2 Score

6.9

AV:L/AC:M/Au:N/C:C/I:C/A:C

EPSS Score (Exploitation Probability)

40.56%MEDIUM Exploitation Risk
97th percentile

This vulnerability has a 40.56% probability of being exploited in the next 30 days, ranking higher than 97% of all scored CVEs.

CWE Classification

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Same Weakness Type(CWE-119)

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