EUVD-2026-29663
Use After Free (CWE-416)
GHSA-h659-hh52-mv97
9.3
CVSS 3.1 · NVD
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Severity by source
NVD
PRIMARY
9.3
CRITICAL
AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
ENISA EUVD
HIGH
qualitative
Primary rating from NVD.
CVSS VectorNVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
1
CVE Published
May 12, 2026 - 16:59 nvd
CRITICAL 9.3
DescriptionCVE.org
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Analysis
Use after free in Windows Hyper-V allows an unauthorized attacker to elevate privileges locally.
Same weakness CWE-416 – Use After Free
View allSame technique Denial Of Service
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External POC / Exploit Code
Leaving vuln.today
Destination URL
POC code from unknown sources may be malicious, contain backdoors, or be fake.
Always review and test exploit code in a safe, isolated environment (VM/sandbox).
Verify the source reputation and cross-reference with known databases (Exploit-DB, GitHub Security).