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Fencer Vulns
high 7.8

CVE-2020-0642 json

An elevation of privilege vulnerability exists in Windows when the Win32k component fails to properly handle objects in memory, aka 'Win32k…

published 2020-01-14 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-2136

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.6%
EPSS 1.6% chance of exploitation in 30 days, percentile 76%
public exploits
0
none known

Summary

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.

Patch / fix

Exploit prediction

1.60% chance of exploitation in the next 30 days, higher than 76% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/158729/Microsoft-Windows-Win32k-Privilege-Escalation.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.2 AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Windows
  • Microsoft Windows Server
  • Microsoft Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Windows 10 Version 1903 for x64-based Systems
  • Microsoft Windows 10 Version 1903 for ARM64-based Systems
  • Microsoft Windows Server, version 1903 (Server Core installation)
  • Microsoft Windows 10 Version 1909 for 32-bit Systems
  • Microsoft Windows 10 Version 1909 for x64-based Systems
  • Microsoft Windows 10 Version 1909 for ARM64-based Systems
  • Microsoft Windows Server, version 1909 (Server Core installation)

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.