CVE-2024-21427

Windows Kerberos Security Feature Bypass Vulnerability

HIGH
7.5
CVSS Score
Published: March 12, 2024 at 04:58 PM UTC
Updated: June 17, 2026 at 07:09 AM UTC
6 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows Server 2012

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Severity
HIGH7.5
Exploit prediction
EPSS 2%
SSVC
No known exploit

Description

Windows Kerberos Security Feature Bypass Vulnerability

Affected

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

6.3.9600.0 ≤ v < 6.3.9600.219246.3.9600.0r2
Affected range stops below 6.3.9600.21924, so it looks safe — our inference, not a vendor statement
v < 10.0.14393.689710.0.14393.0 ≤ v < 10.0.14393.689710.0.14393.0
Affected range stops below 10.0.14393.6897, so it looks safe — our inference, not a vendor statement
v < 10.0.17763.569610.0.17763.0 ≤ v < 10.0.17763.569610.0.17763.0
Affected range stops below 10.0.17763.5696, so it looks safe — our inference, not a vendor statement
v < 10.0.20348.240210.0.20348.0 ≤ v < 10.0.20348.240210.0.20348.0
Affected range stops below 10.0.20348.2402, so it looks safe — our inference, not a vendor statement
v < 10.0.25398.83010.0.25398.0 ≤ v < 10.0.25398.83010.0.25398.0
Affected range stops below 10.0.25398.830, so it looks safe — our inference, not a vendor statement
10.0.25398.0 ≤ v < 10.0.25398.830
Affected range stops below 10.0.25398.830, 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:

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-287NVD-CWE-noinfo

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