CVE-2020-0642
HIGH EXPLOITED RANSOMWAREWindows Win32k - Use-After-Free Privilege Escalation
Title source: llmExploitation Summary
CVE-2020-0642 has been observed exploited in the wild (reported by VulnCheck KEV), including 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-2020-0624.
References (2)
Core 2
Core References
Patch, Vendor Advisory x_refsource_misc
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-0642
Exploit, Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/158729/Microsoft-Windows-Win32k-Privilege-Escalation.html
Scores
CVSS v3
7.8
EPSS
0.0150
EPSS Percentile
71.1%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details
VulnCheck KEV
2020-01-22
Ransomware Use
Confirmed
CWE
CWE-416
Status
published
Products (19)
microsoft/windows_10
microsoft/windows_10
1607
microsoft/windows_10
1709
microsoft/windows_10
1803
microsoft/windows_10
1809
microsoft/windows_10
1903
microsoft/windows_10
1909
microsoft/windows_7
microsoft/windows_8.1
microsoft/windows_rt_8.1
... and 9 more
Published
Jan 14, 2020
Tracked Since
Feb 18, 2026