⚠ Actively exploited
Added to CISA KEV on 2024-11-12. Federal agencies required to patch by 2024-12-03. Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable..

CVE-2024-43451 — External Control of File Name or Path in Microsoft Windows 10 Version 1507

CWE-73 — External Control of File Name or Path21 documents13 sources
Severity
6.5MEDIUMCNA
No vector
EPSS
90.3%
top 0.40%
CISA KEV
KEV
Added 2024-11-12
Due 2024-12-03
Exploit
Exploited in wild
Active exploitation observed
Affected products
16
Microsoft Windows 10 Version 1507Microsoft Windows 10 Version 1607Microsoft Windows 10 Version 1809+13 more
Timeline
PublishedNov 12
KEV addedNov 12
KEV dueDec 3
Latest updateNov 26
CISA Required Action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Description

NTLM Hash Disclosure Spoofing Vulnerability NTLM Hash Disclosure Spoofing Vulnerability

Affected Packages16 packages

▶CVEListV5microsoft/windows_server_201610.0.14393.0 — 10.0.14393.7515
▶CVEListV5microsoft/windows_server_201910.0.17763.0 — 10.0.17763.6532
▶CVEListV5microsoft/windows_server_202210.0.20348.0 — 10.0.20348.2849
▶CVEListV5microsoft/windows_server_202510.0.26100.0 — 10.0.26100.2314
▶CVEListV5microsoft/windows_server_2012_r26.3.9600.0 — 6.3.9600.22267

🔴Vulnerability Details

2
CVEList
NTLM Hash Disclosure Spoofing Vulnerability↗2024-11-12
▶
VulnCheck
Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability↗2024
▶

🔍Detection Rules

1
Suricata
ET EXPLOIT NTLM Hash Disclosure via InternetShortcut File Inbound with UNC Path Inbound (CVE-2024-43451)↗2025-05-13
▶

📋Vendor Advisories

2
Microsoft
NTLM Hash Disclosure Spoofing Vulnerability↗2024-11-12
▶
CISA
Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability↗2024-11-12
▶

🕵️Threat Intelligence

16
Securelist
Old tech, new vulnerabilities: NTLM abuse, ongoing exploitation in 2025↗2025-11-26
▶
Securelist
How NTLM is being abused in 2025 cyberattacks↗2025-11-26
▶
Securelist
Vulnerability landscape analysis for Q4 2024↗2025-02-26
▶
Securelist
Exploits and vulnerabilities in Q4 2024↗2025-02-26
▶
Tenable
Microsoft Patch Tuesday 2024 Year in Review↗2024-12-10
▶
CVE-2024-43451 — External Control of File Name or Path | cvebase