CVE intelligence and bounded remediation

CVE-2020-0917 — Microsoft Windows 10 security vulnerability

High CVSS 7.4

An elevation of privilege vulnerability exists when Windows Hyper-V on a host server fails to properly handle objects in memory, aka 'Windows Hyper-V Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2020-0918.

Severity
High
CVSS
7.4 (2.0)
Published
2020-04-15
CISA KEV
Not currently listed
Ecosystem
windows/system

Affected products

  • microsoft / windows_10 / 1809
  • microsoft / windows_10 / 1903
  • microsoft / windows_10 / 1909
  • microsoft / windows_server_2016 / 1903
  • microsoft / windows_server_2016 / 1909
  • microsoft / windows_server_2019

Matched remediation archetype

Privilege escalation and unsafe privilege management

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

Check exposure

  • Map service accounts, operating-system identities, roles, capabilities, impersonation, set-user transitions, and administrative helper paths.
  • Determine whether untrusted users or lower-privilege processes can reach the affected transition or modify inputs it trusts.
  • Review file, socket, registry, device, job, container, and cloud-role permissions used before and after privilege changes.

Remediate safely

  • Apply the supported fix and redesign privileged operations as a minimal, authenticated, allowlisted interface.
  • Drop privileges before processing untrusted input, verify the drop succeeds, and remove unnecessary roles, capabilities, and write permissions.
  • Validate ownership and permissions at time of use and add explicit lower-to-higher privilege boundary tests.

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.