Use After Free in Microsoft Windows
CVE-2020-0642
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.
Vulnerability class: Use-After-Free
EPSS: 0.015 (71.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Windows — versions 10 Version 1803 for 32-bit Systems, 10 Version 1803 for x64-based Systems, 10 Version 1803 for ARM64-based Systems
- Microsoft Windows_10 — versions 1607, 1709, 1803
- Microsoft Windows 10 Version 1903 For 32-bit Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For Arm64-based Systems — versions unspecified
- Microsoft Windows 10 Version 1903 For X64-based Systems — versions unspecified
- Microsoft Windows 10 Version 1909 For 32-bit Systems — versions unspecified
- Microsoft Windows 10 Version 1909 For Arm64-based Systems — versions unspecified
- Microsoft Windows 10 Version 1909 For X64-based Systems — versions unspecified
- Microsoft Windows_7
- Microsoft Windows_8.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
- secure@microsoft.com (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-0642?
- CVE-2020-0642 is a high-severity vulnerability in Microsoft Windows, classified under Use After Free. CVSS score: 7.8/10. Published 2020-01-14.
- How severe is CVE-2020-0642?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2020-0642 known to be exploited?
- 11 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.