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Microsoft · Win32k

CVE-2018-8120

Microsoft Win32k Privilege Escalation Vulnerability

Exploited in attacks Used by ransomware High 7.0 Attack chance: 73%
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What it is

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka "Win32k Elevation of Privilege Vulnerability." This affects Windows Server 2008, Windows 7, Windows Server 2008 R2. This CVE ID is unique from CVE-2018-8124, CVE-2018-8164, CVE-2018-8166.

CISA: A privilege escalation vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory.

What to do

Apply updates per vendor instructions.

Deadline for US federal agencies: April 5, 2022

Added to the CISA list
March 15, 2022
Published
May 9, 2018
Severity
High 7.0 CVSS 3.1
Chance of attacks in the next 30 days (EPSS)
73% in the top 0.5% of all known vulnerabilities
Weakness
CWE-404
More details
NVD · CVE.org · CISA
All references (4)

More exploited flaws from Microsoft

AddedVulnerabilityProductSeverityAttack chance
Jun 22, 2023Privilege EscalationCVE-2016-0165Win32kHigh 7.814%
May 9, 2023Privilege EscalationCVE-2023-29336Win32kHigh 7.841%
May 25, 2022Privilege EscalationCVE-2015-2360Win32kHigh 8.815%
May 23, 2022Privilege EscalationCVE-2018-8589Win32kHigh 7.83.0%
May 4, 2022Privilege EscalationCVE-2014-4113Win32kHigh 7.887%
Apr 25, 2022Privilege EscalationCVE-2021-40450Win32kHigh 7.81.6%
Apr 25, 2022Privilege EscalationCVE-2021-41357Win32kHigh 7.81.6%
Mar 28, 2022Privilege EscalationCVE-2013-3660Win32kHigh 7.839%

All of them →

Sources: Known Exploited Vulnerabilities (CISA, public domain), CVE records (cve.org) and EPSS (FIRST). The chance of attacks is the EPSS estimate that someone will try to exploit the flaw in the next 30 days.