CVE-2021-40456 — Incorrect Authorization in Microsoft Windows Server 2019

CWE-863 — Incorrect Authorization4 documents4 sources
Severity
7.5HIGHNVD
CNA5.3
EPSS
2.3%
top 15.38%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
5
Microsoft Windows Server 2019Microsoft Windows Server 2022Microsoft Windows Server Version 2004+2 more
Timeline
PublishedOct 13
Latest updateMay 24

Description

Windows AD FS Security Feature Bypass Vulnerability

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶CVEListV5microsoft/windows_server_201910.0.0 — 10.0.17763.2237
▶CVEListV5microsoft/windows_server_202210.0.0 — 10.0.20348.288
▶CVEListV5microsoft/windows_server_version_200410.0.0 — 10.0.19041.1288
▶CVEListV5microsoft/windows_server_version_20h210.0.0 — 10.0.19042.1288

Patches

Patch: portal.msrc.microsoft.com ↗Patch: portal.msrc.microsoft.com ↗

🔴Vulnerability Details

2
GHSA
GHSA-j5xg-6v4g-89vw: Windows AD FS Security Feature Bypass Vulnerability↗2022-05-24
▶
CVEList
Windows AD FS Security Feature Bypass Vulnerability↗2021-10-13
▶

📋Vendor Advisories

1
Microsoft
Windows AD FS Security Feature Bypass Vulnerability↗2021-10-12
▶
CVE-2021-40456 — Incorrect Authorization in Microsoft | cvebase