CVE intelligence and bounded remediation

CVE-2020-0642 — Microsoft Windows 10 security vulnerability

High CVSS 7.8

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.

Severity
High
CVSS
7.8 (3.1)
Published
2020-01-14
CISA KEV
Not currently listed
Ecosystem
windows/system
Weaknesses
CWE-416

Affected products

  • microsoft / windows_10
  • microsoft / windows_10 / 1607
  • microsoft / windows_10 / 1709
  • microsoft / windows_10 / 1803
  • microsoft / windows_10 / 1809
  • microsoft / windows_10 / 1903

Showing 6 representative product identities from 20 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Use-after-free, double free, and expired resource use

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Trace ownership, references, callbacks, asynchronous tasks, and teardown paths around the affected object or resource.
  • Identify reachable inputs and timing or state transitions that can release the object while references remain.
  • Confirm affected builds, allocators, feature flags, architectures, and process privileges.

Remediate safely

  • Apply the maintained ownership or lifetime fix and rebuild all artifacts containing the affected native code.
  • Use explicit ownership, safe reference management, cancellation and join semantics, and idempotent teardown.
  • Add deterministic lifetime tests plus isolated sanitizer and concurrency coverage for shutdown and error paths.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.