MEDIUMCVSS 6.5Actively exploited · CISA KEV since 2024-11-12Vulnerability

CVE-2024-43451

Microsoft Windows contains an NTLMv2 hash spoofing vulnerability that could result in disclosing a user's NTLMv2 hash to an attacker via a file open operation. The attacker could then leverage this hash to impersonate that user.

Properties

Euvd product
Windows Server 2016, Windows Server 2008 R2 Service Pack 1, Windows 10 Version 1809, Windows Server 2008 R2 Service Pack 1 (Server Core installation), Windows 11 Version 24H2, Windows 10 Version 1507, Windows Server 2008 Service Pack 2 (Server Core installation), Windows 11 version 22H2, Windows Server 2012 R2 (Server Core installation), Windows Server 2016 (Server Core installation), Windows Server 2019, Windows Server 2022, Windows 10 Version 21H2, Windows Server 2008 Service Pack 2, Windows 10 Version 1607, Windows Server 2012 R2, Windows 11 version 22H3, Windows 10 Version 22H2, Windows Server 2025, Windows 11 Version 23H2, Windows Server 2025 (Server Core installation), Windows Server 2019 (Server Core installation), Windows Server 2022, 23H2 Edition (Server Core installation)
Vulnerability name
Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability
First seen
2025-10-21T22:55:37+00:00
Cvss score
6.5
Epss score
0.85434
Last seen
2026-10-19T12:00:27+00:00
Year
2024
Due date
2024-12-03
Euvd assigner
microsoft
Retrieved at
2026-10-21T01:24:47+00:00
Exploited euvd since
2024-11-12T00:00:00+00:00
Src batch id
epss_history-20261020T103617Z-728ddd
Source url
https://epss.empiricalsecurity.com/epss_scores-2026-10-19.csv.gz
Date added
2024-11-12
Score
6.5
Euvd base score version
3.1
Fetched at
2026-10-20T10:36:20+00:00
Euvd vendor
Microsoft
Updated at
2026-04-09T23:39:55.318599+00:00
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Related Entities (31 · showing 23)

AFFECTS_PRODUCT (28 · showing 20)

→[Product]cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*
→[Product]cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:x64:*
→[Product]cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*
→[Product]cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
→[Product]cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*

DESCRIBES (1)

←[KEVEntry]Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability

HAS_WEAKNESS (1)

→[Weakness]External Control of File Name or Path

INVOLVES (1)

←[Signal]kev_added · 2024-11-12

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CVE-2024-43451 (CVSS 6.5) — Ninja Signal Threat Intelligence | Ninja Signal