CVE-2026-20849
HIGH
2026-01-13
[email protected]
7.5
CVSS 3.1
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CVSS Vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
High
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 7.5
Tags
Description
Reliance on untrusted inputs in a security decision in Windows Kerberos allows an authorized attacker to elevate privileges over a network.
Analysis
Windows Kerberos authentication in multiple Windows versions accepts untrusted input during security decisions, enabling authenticated network attackers to escalate privileges without user interaction. The vulnerability affects Windows 10 (versions 1607 and 1809), Windows Server 2012, and Windows Server 2025, with no patch currently available. …
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Remediation
Within 7 days: Identify all affected systems and apply vendor patches promptly. Monitor vendor channels for patch availability.
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Priority Score
38
Low
Medium
High
Critical
KEV: 0
EPSS: +0.1
CVSS: +38
POC: 0
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External POC / Exploit Code
Leaving vuln.today
Destination URL
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