CVE-2026-20833

MEDIUM

Windows Kerberos - Info Disclosure

Title source: llm

Description

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

Exploits (1)

nomisec WRITEUP
by v-jfanca · poc
https://github.com/v-jfanca/cve-2026-20833-rc4-kerberos

References (1)

Scores

CVSS v3 5.5
EPSS 0.0003
EPSS Percentile 10.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-327
Status published
Products (25)
microsoft/windows_server_2008 (2 CPE variants)
microsoft/windows_server_2008 r2 sp1
Microsoft/Windows Server 2008 R2 Service Pack 1 6.1.7601.0 - 6.1.7601.28117
Microsoft/Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 - 6.1.7601.28117
Microsoft/Windows Server 2008 Service Pack 2 6.0.6003.0 - 6.0.6003.23717
Microsoft/Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 - 6.0.6003.23717
Microsoft/Windows Server 2012 6.2.9200.0 - 6.2.9200.25868
microsoft/windows_server_2012
microsoft/windows_server_2012 r2
Microsoft/Windows Server 2012 R2 6.3.9600.0 - 6.3.9600.22968
... and 15 more
Published Jan 13, 2026
Tracked Since Feb 18, 2026