CVE-2024-43451

mediumpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.843 · 100 %ileexploit · PoCDEEUNLRUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 1 exploit · PoC

Likely / severe?

84.3% (100th) EPSS

CVSS 6.5 · medium

Is it mine?

153 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2024-11-12remediate by 2024-12-03

required action Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

EPSS · scored 2026-10-27

Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability

NTLM Hash Disclosure Spoofing Vulnerability

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedWindows 10 Version 1607 for 32-bit Systemsmsrc_csaf
10.0.14393.7515:Security Update:https://support.microsoft.com/help/5046612
https://support.microsoft.com/help/5046612
FixedWindows 10 Version 1607 for x64-based Systemsmsrc_csaf
10.0.14393.7515:Security Update:https://support.microsoft.com/help/5046612
https://support.microsoft.com/help/5046612
FixedWindows 10 Version 1809 for 32-bit Systemsmsrc_csaf
10.0.17763.6532:Security Update:https://support.microsoft.com/help/5046615
https://support.microsoft.com/help/5046615
FixedWindows 10 Version 1809 for x64-based Systemsmsrc_csaf
10.0.17763.6532:Security Update:https://support.microsoft.com/help/5046615
https://support.microsoft.com/help/5046615
FixedWindows 10 Version 21H2 for 32-bit Systemsmsrc_csaf
10.0.19044.5131:Security Update:https://support.microsoft.com/help/5046613
https://support.microsoft.com/help/5046613
FixedWindows 10 Version 21H2 for ARM64-based Systemsmsrc_csaf
10.0.19044.5131:Security Update:https://support.microsoft.com/help/5046613
https://support.microsoft.com/help/5046613
FixedWindows 10 Version 21H2 for x64-based Systemsmsrc_csaf
10.0.19044.5131:Security Update:https://support.microsoft.com/help/5046613
https://support.microsoft.com/help/5046613
FixedWindows 10 Version 22H2 for 32-bit Systemsmsrc_csaf
10.0.19045.5131:Security Update:https://support.microsoft.com/help/5046613
https://support.microsoft.com/help/5046613
FixedWindows 10 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.19045.5131:Security Update:https://support.microsoft.com/help/5046613
https://support.microsoft.com/help/5046613
FixedWindows 10 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.19045.5131:Security Update:https://support.microsoft.com/help/5046613
https://support.microsoft.com/help/5046613
FixedWindows 10 for 32-bit Systemsmsrc_csaf
10.0.10240.20826:Security Update:https://support.microsoft.com/help/5046665
https://support.microsoft.com/help/5046665
FixedWindows 10 for x64-based Systemsmsrc_csaf
10.0.10240.20826:Security Update:https://support.microsoft.com/help/5046665
https://support.microsoft.com/help/5046665
FixedWindows 11 Version 22H2 for ARM64-based Systemsmsrc_csaf
10.0.22621.4460:Security Update:https://support.microsoft.com/help/5046633
https://support.microsoft.com/help/5046633
FixedWindows 11 Version 22H2 for x64-based Systemsmsrc_csaf
10.0.22621.4460:Security Update:https://support.microsoft.com/help/5046633
https://support.microsoft.com/help/5046633
FixedWindows 11 Version 23H2 for ARM64-based Systemsmsrc_csaf
10.0.22631.4460:Security Update:https://support.microsoft.com/help/5046633
https://support.microsoft.com/help/5046633
FixedWindows 11 Version 23H2 for x64-based Systemsmsrc_csaf
10.0.22631.4460:Security Update:https://support.microsoft.com/help/5046633
https://support.microsoft.com/help/5046633
FixedWindows 11 Version 24H2 for ARM64-based Systemsmsrc_csaf
10.0.26100.2314:Security Update:https://support.microsoft.com/help/5046617
https://support.microsoft.com/help/5046617
FixedWindows 11 Version 24H2 for x64-based Systemsmsrc_csaf
10.0.26100.2314:Security Update:https://support.microsoft.com/help/5046617
https://support.microsoft.com/help/5046617
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation)msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2008 for 32-bit Systems Service Pack 2msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation)msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2008 for x64-based Systems Service Pack 2msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation)msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2012 R2msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2012 R2 (Server Core installation)msrc_csaf
1.001:IE Cumulative:https://support.microsoft.com/help/5046630
https://support.microsoft.com/help/5046630
FixedWindows Server 2016msrc_csaf
10.0.14393.7515:Security Update:https://support.microsoft.com/help/5046612
https://support.microsoft.com/help/5046612
FixedWindows Server 2016 (Server Core installation)msrc_csaf
10.0.14393.7515:Security Update:https://support.microsoft.com/help/5046612
https://support.microsoft.com/help/5046612
FixedWindows Server 2019msrc_csaf
10.0.17763.6532:Security Update:https://support.microsoft.com/help/5046615
https://support.microsoft.com/help/5046615
FixedWindows Server 2019 (Server Core installation)msrc_csaf
10.0.17763.6532:Security Update:https://support.microsoft.com/help/5046615
https://support.microsoft.com/help/5046615
FixedWindows Server 2022msrc_csaf
10.0.20348.2849:Security Update:https://support.microsoft.com/help/5046616
https://support.microsoft.com/help/5046616
FixedWindows Server 2022 (Server Core installation)msrc_csaf
10.0.20348.2849:Security Update:https://support.microsoft.com/help/5046616
https://support.microsoft.com/help/5046616
FixedWindows Server 2022, 23H2 Edition (Server Core installation)msrc_csaf
10.0.25398.1251:Security Update:https://support.microsoft.com/help/5046618
https://support.microsoft.com/help/5046618
FixedWindows Server 2025msrc_csaf
10.0.26100.2314:Security Update:https://support.microsoft.com/help/5046617
https://support.microsoft.com/help/5046617
FixedWindows Server 2025 (Server Core installation)msrc_csaf
10.0.26100.2314:Security Update:https://support.microsoft.com/help/5046617
https://support.microsoft.com/help/5046617

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumAV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:Csecondary · ENISA EU

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:Nsecondary · secure@microsoft.com USexploitability 2.8 · impact 3.6

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:Hsecondary · CVSS-BT (t0sche)

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:Csecondary · Microsoft Security Response Center US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-73USCWE-73USCWE-73USCWE-73US

exploits (1)

Public proof-of-concept and weaponised exploit code.

razureink/cve-2024-43451-ntlm_hash_disclosure_reproductionCVE Reproduction: cve-2024-43451-ntlm_hash_disclosure_reproductionPoC · poc_in_github

affected products (153)

Products and version ranges known to be affected.

Hitachi Storageall versionscert_bundDEcpe:/h:hitachi:storage:-
Microsoft Windows 10all versionscert_bundDEcpe:/o:microsoft:windows_10:-
Microsoft Windows 10 Version 1607all versionscert_bundDEcpe:/o:microsoft:windows_10:version_1607
Microsoft Windows 10 Version 1809all versionscert_bundDEcpe:/o:microsoft:windows_10:version_1809
Microsoft Windows 10 Version 21H2all versionscert_bundDEcpe:/o:microsoft:windows_10:version_21h2
Microsoft Windows 10 Version 22H2all versionscert_bundDEcpe:/o:microsoft:windows_10:version_22h2
Microsoft Windows 11 Version 22H2all versionscert_bundDEcpe:/o:microsoft:windows_11:version_22h2
Microsoft Windows 11 Version 23H2all versionscert_bundDEcpe:/o:microsoft:windows_11:version_23h2
Microsoft Windows 11 Version 24H2all versionscert_bundDEcpe:/o:microsoft:windows_11:version_24h2
Microsoft Windows Server 2008 R2 SP1all versionscert_bundDEcpe:/o:microsoft:windows_server:2008_r2_sp1
Microsoft Windows Server 2008 SP2all versionscert_bundDEcpe:/o:microsoft:windows_server:2008_sp2
Microsoft Windows Server 2012all versionscert_bundDEcpe:/o:microsoft:windows_server_2012:-
Microsoft Windows Server 2012 R2all versionscert_bundDEcpe:/o:microsoft:windows_server_2012_r2:-
Microsoft Windows Server 2016all versionscert_bundDEcpe:/o:microsoft:windows_server_2016:-
Microsoft Windows Server 2019all versionscert_bundDEcpe:/o:microsoft:windows_server_2019:-
Microsoft Windows Server 2022all versionscert_bundDEcpe:/o:microsoft:windows_server_2022:-
Microsoft Windows Server 2022 23H2 Editionall versionscert_bundDEcpe:/o:microsoft:windows_server_2022:23h2_edition
Microsoft Windows Server 2025all versionscert_bundDEcpe:/o:microsoft:windows_server:2025
Microsoft Windows 10 Version 150710.0.10240.0 → 10.0.10240.20826enisa_euvdEU
Microsoft Windows 10 Version 160710.0.14393.0 → 10.0.14393.7515enisa_euvdEU

showing 20 of 153

advisories (3)

Vendor and ecosystem advisories describing this.

NCSC-2024-0434Kwetsbaarheden verholpen in Microsoft WindowsNL2024-11-12csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Windows.
WID-SEC-W-2024-3445Microsoft Windows: Mehrere SchwachstellenDeutsch2024-11-12csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in verschiedenen Versionen von Microsoft Windows Server und Microsoft Windows ausnutzen, um seine Privilegien zu erhöhen, einen Denial-of-Service-Zustand zu erzeugen, beliebigen Code auszuführen, vertrauliche Informationen preiszugeben und einen Spoofing-Angriff durchzuführen.
msrc_CVE-2024-43451NTLM Hash Disclosure Spoofing Vulnerability2024-11-12csaf · msrc_csafUS
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl msrc_csaf NVD CVE.org MITRE

published 2024-11-12modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan