CVE-2021-33764

Windows Key Distribution Center Information Disclosure Vulnerability

MEDIUM
5.9
CVSS Score
Published: July 14, 2021 at 05:53 PM UTC
Updated: August 10, 2026 at 04:17 PM UTC
6 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
MEDIUM5.9
Exploit prediction
EPSS 3%

Description

Windows Key Distribution Center Information Disclosure Vulnerability

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

10.0.0 ≤ v < 10.0.19041.111010.0.0
Affected range stops below 10.0.19041.1110, so it looks safe — our inference, not a vendor statement
6.0.6003.0 ≤ v < 6.0.6003.211676.1.7601.0 ≤ v < 6.1.7601.256616.0.6003.06.1.7601.0sp1sp2
Affected range stops below 6.0.6003.21167, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.1.7601.25661, so it looks safe — our inference, not a vendor statement
6.2.9200.0 ≤ v < 6.2.9200.234096.3.9600.0 ≤ v < 6.3.9600.200696.2.9200.06.3.9600.0r2
Affected range stops below 6.2.9200.23409, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.3.9600.20069, so it looks safe — our inference, not a vendor statement
10.0.14393.0 ≤ v < 10.0.14393.453010.0.14393.0200420h2
Affected range stops below 10.0.14393.4530, so it looks safe — our inference, not a vendor statement
10.0.17763.0 ≤ v < 10.0.17763.206110.0.17763.0
Affected range stops below 10.0.17763.2061, so it looks safe — our inference, not a vendor statement
10.0.0 ≤ v < 10.0.19042.111010.0.0
Affected range stops below 10.0.19042.1110, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

5.9MEDIUMmicrosoft
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

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