Reference page — cumulative record through Wednesday, October 7, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2024-43451

CVE-2024-43451MEDIUM

Microsoft Windows Server 2025 — NTLM Hash Disclosure Spoofing Vulnerability

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   N   L   N   R  U  H  N  N    6.5   .8411   99.7   YES

AFFECTED
  Product                                         Versions        Fixed
  Windows Server 2025                             10.0.26100.0 –  —
  Windows Server 2025 (Server Core installation)  10.0.26100.0 –  —
  Windows 10 Version 1809                         10.0.17763.0 –  —
  Windows Server 2019                             10.0.17763.0 –  —
  Windows Server 2019 (Server Core installation)  10.0.17763.0 –  —
  Windows Server 2022                             10.0.20348.0 –  —
  Windows 10 Version 21H2                         10.0.19043.0 –  —
  Windows 11 version 22H2                         10.0.22621.0 –  —
  Windows 10 Version 22H2                         10.0.19045.0 –  —
  Windows 11 version 22H3                         10.0.22631.0 –  —
  + 14 more

TIMELINE
  Aug 14  Reserved by microsoft
  Nov 12  Added to CISA KEV, remediation due 2024-12-03
  Nov 12  Published (CNA: microsoft)

CWE-73 · CNA: microsoft · CVSS v3.1 · 2 references · KEV due December 3, 2024

Description

NTLM Hash Disclosure Spoofing Vulnerability

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
August 14, 2024	Reserved	Reserved by microsoft
November 12, 2024	KEV ADDED	Added to CISA KEV, remediation due 2024-12-03
November 12, 2024	Published	Published (CNA: microsoft)

Affected

Affected products and packages — 24 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Microsoft	Windows Server 2025	—	10.0.26100.0	—
Microsoft	Windows Server 2025 (Server Core installation)	—	10.0.26100.0	—
Microsoft	Windows 10 Version 1809	—	10.0.17763.0	—
Microsoft	Windows Server 2019	—	10.0.17763.0	—
Microsoft	Windows Server 2019 (Server Core installation)	—	10.0.17763.0	—
Microsoft	Windows Server 2022	—	10.0.20348.0	—
Microsoft	Windows 10 Version 21H2	—	10.0.19043.0	—
Microsoft	Windows 11 version 22H2	—	10.0.22621.0	—
Microsoft	Windows 10 Version 22H2	—	10.0.19045.0	—
Microsoft	Windows 11 version 22H3	—	10.0.22631.0	—
Microsoft	Windows 11 Version 23H2	—	10.0.22631.0	—
Microsoft	Windows Server 2022, 23H2 Edition (Server Core installation)	—	10.0.25398.0	—
Microsoft	Windows 11 Version 24H2	—	10.0.26100.0	—
Microsoft	Windows 10 Version 1507	—	10.0.10240.0	—
Microsoft	Windows 10 Version 1607	—	10.0.14393.0	—
Microsoft	Windows Server 2016	—	10.0.14393.0	—
Microsoft	Windows Server 2016 (Server Core installation)	—	10.0.14393.0	—
Microsoft	Windows Server 2008 Service Pack 2	—	6.0.6003.0	—
Microsoft	Windows Server 2008 Service Pack 2 (Server Core installation)	—	6.0.6003.0	—
Microsoft	Windows Server 2008 Service Pack 2	—	6.0.6003.0	—
Microsoft	Windows Server 2008 R2 Service Pack 1	—	6.1.7601.0	—
Microsoft	Windows Server 2008 R2 Service Pack 1 (Server Core installation)	—	6.1.7601.0	—
Microsoft	Windows Server 2012 R2	—	6.3.9600.0	—
Microsoft	Windows Server 2012 R2 (Server Core installation)	—	6.3.9600.0	—

Weaknesses

CWE-73

References (2)

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43451 [vendor-advisory]
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-43451 [government-resource]

Authoritative record: CVE-2024-43451 at cve.org

Vendors: microsoft

Weaknesses: CWE-73

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2024-43451 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, October 7, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.