CVE-2019-0803

HighActively exploited (CISA KEV)Known to be used in ransomware campaigns

Description

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 CVE ID is unique from CVE-2019-0685, CVE-2019-0859.

SeverityHigh
CVSS7.8
Exploit probability—
ProductMicrosoft Win32k
PublishedApr 9, 2019
First seenApr 9, 2019
Added to KEVNov 3, 2021

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: May 3, 2022

Affected products

ProductAffected versionsFixed in
microsoft windows_10_1507No range specified—
microsoft windows_10_1607No range specified—
microsoft windows_10_1703No range specified—
microsoft windows_10_1709No range specified—
microsoft windows_10_1803No range specified—
microsoft windows_10_1809No range specified—
microsoft windows_7No range specified—
microsoft windows_8.1No range specified—
microsoft windows_rt_8.1No range specified—
microsoft windows_server_1709No range specified—
microsoft windows_server_1803No range specified—
microsoft windows_server_2008No range specified, r2—
microsoft windows_server_2012No range specified, r2—
microsoft windows_server_2016No range specified—
microsoft windows_server_2019No range specified—

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CVE-2019-0803 · Microsoft Win32k · Dark Radar