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CVE-2026-40402

critical · 9.3

Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.

9.3
CVSS
0.3%
EPSS (exploit prob.)
27th
EPSS percentile
2026-05-12
Published

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Weaknesses

CWE-416

Affected products

VendorProductAffected versions
microsoftwindows_11_23h2< 10.0.22631.7079
microsoftwindows_11_23h2< 10.0.22631.7079
microsoftwindows_server_2022< 10.0.20348.5074

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-40402