CVE-2026-20833

Use of a broken or risky cryptographic algorithm in Windows Kerberos allows an authorized attacker to disclose information locally.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-20833	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x86:*
	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::x64:*
	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
	cpe:2.3:o:microsoft:windows_server_2016::::::::
	cpe:2.3:o:microsoft:windows_server_2019::::::::
	cpe:2.3:o:microsoft:windows_server_2022::::::::
	cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::
	cpe:2.3:o:microsoft:windows_server_2025::::::::

History

No history.

Information

Published : 2026-01-13 18:16

Updated : 2026-01-15 14:40

NVD link : CVE-2026-20833

Mitre link : CVE-2026-20833

CVE.ORG link : CVE-2026-20833

JSON object : View

Products Affected

microsoft

windows_server_2022_23h2
windows_server_2016
windows_server_2022
windows_server_2025
windows_server_2019
windows_server_2008
windows_server_2012

CWE

CWE-327

Use of a Broken or Risky Cryptographic Algorithm

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