Weak Cryptographic Algorithm in Windows Kerberos Enables Local Data Disclosure

Publication date: 2026-01-13

Last updated on: 2026-01-13

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-01-13

Last Modified

2026-01-13

Generated

2026-07-06

AI Q&A

2026-01-14

EPSS Evaluated

2026-07-05

NVD

CVE-2026-20833

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_kerberos	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-327	The product uses a broken or risky cryptographic algorithm or protocol.

Attack-Flow Graph

Executive Summary

This vulnerability involves the use of a broken or risky cryptographic algorithm in Windows Kerberos, which allows an authorized attacker to disclose information locally. [1]

Impact Analysis

An authorized attacker can exploit this vulnerability to disclose sensitive information on a local system, potentially leading to information leakage. [1]

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