Actively exploited · Published Nov 12, 2024 · Assigned by microsoft

CVE-2024-43451NTLM Hash Disclosure Spoofing Vulnerability

Medium 6.5 Exploited

In plain English

A medium-severity security flaw in Windows 10 Version 1507 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on November 12, 2024). The chance it is exploited in the next 30 days is estimated at 84.3% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)84.3%top 0.3% of all CVEs
Exploited in the wildYesCISA KEV since Nov 12, 2024
Attack tooling1Public PoC

CISA guidance

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

Federal agencies must remediate by Dec 3, 2024.

Official description

NTLM Hash Disclosure Spoofing Vulnerability

Affected products (as reported)

VendorProductVersions
Microsoft Windows Server 2025 10.0.26100.0 – before 10.0.26100.2314
Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.0 – before 10.0.26100.2314
Microsoft Windows 10 Version 1809 10.0.17763.0 – before 10.0.17763.6532
Microsoft Windows Server 2019 10.0.17763.0 – before 10.0.17763.6532
Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.0 – before 10.0.17763.6532
Microsoft Windows Server 2022 10.0.20348.0 – before 10.0.20348.2849
Microsoft Windows 10 Version 21H2 10.0.19043.0 – before 10.0.19044.5131
Microsoft Windows 11 version 22H2 10.0.22621.0 – before 10.0.22621.4460
Microsoft Windows 10 Version 22H2 10.0.19045.0 – before 10.0.19045.5131
Microsoft Windows 11 version 22H3 10.0.22631.0 – before 10.0.22631.4460
Microsoft Windows 11 Version 23H2 10.0.22631.0 – before 10.0.22631.4460
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.0 – before 10.0.25398.1251
Microsoft Windows 11 Version 24H2 10.0.26100.0 – before 10.0.26100.2314
Microsoft Windows 10 Version 1507 10.0.10240.0 – before 10.0.10240.20826
Microsoft Windows 10 Version 1607 10.0.14393.0 – before 10.0.14393.7515
Microsoft Windows Server 2016 10.0.14393.0 – before 10.0.14393.7515
Microsoft Windows Server 2016 (Server Core installation) 10.0.14393.0 – before 10.0.14393.7515
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.22966
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) 6.0.6003.0 – before 6.0.6003.22966
Microsoft Windows Server 2008 Service Pack 2 6.0.6003.0 – before 6.0.6003.22966
Microsoft Windows Server 2008 R2 Service Pack 1 6.1.7601.0 – before 6.1.7601.27415
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) 6.1.7601.0 – before 6.1.7601.27415
Microsoft Windows Server 2012 R2 6.3.9600.0 – before 6.3.9600.22267
Microsoft Windows Server 2012 R2 (Server Core installation) 6.3.9600.0 – before 6.3.9600.22267

Weakness: CWE-73 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:F/RL:O/RC:C

References