CVE-2026-20876
MEDIUM
2026-01-13
[email protected]
6.7
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Lifecycle Timeline
2
Analysis Generated
Mar 12, 2026 - 21:54 vuln.today
CVE Published
Jan 13, 2026 - 18:16 nvd
MEDIUM 6.7
Tags
Description
Heap-based buffer overflow in Windows Virtualization-Based Security (VBS) Enclave allows an authorized attacker to elevate privileges locally.
Analysis
Privilege escalation in Windows Virtualization-Based Security (VBS) Enclave affects Windows 11 and Windows Server 2022 through a heap-based buffer overflow in memory management. An authenticated local attacker with high privileges can exploit this vulnerability to gain unauthorized system-level access. …
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Remediation
Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.
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Priority Score
34
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +34
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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