CVE-2026-40402
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Published May 12, 2026 · updated Jun 17, 2026 · microsoft windows 11 23h2
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
May 12, 2026 · NIST NVD
Detected
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Jun 17, 2026 · NIST NVD
Updated
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Affected
- cpe microsoft/windows 11 23h2version unspecified
- cpe microsoft/windows server 2022version unspecified
Sources
- CVE.orgVulnerability recordCVE-2026-40402
Official CVE identifier
cve.org - NIST NVDVulnerability recordCVE-2026-40402
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
nvd.nist.gov