CVE-2026-20859
HIGH
2026-01-13
[email protected]
7.8
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
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
HIGH 7.8
Description
Use after free in Windows Kernel-Mode Drivers allows an authorized attacker to elevate privileges locally.
Analysis
Kernel-mode driver use-after-free vulnerabilities in Windows 11 24H2 and Windows Server 2025 enable authenticated local attackers to achieve privilege escalation. An attacker with standard user privileges can exploit memory corruption in kernel drivers to gain SYSTEM-level access without user interaction. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. If patching is delayed, consider network segmentation to limit exposure.
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Priority Score
39
Low
Medium
High
Critical
KEV: 0
EPSS: +0.0
CVSS: +39
POC: 0
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External POC / Exploit Code
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