CVE-2024-43451

MEDIUM KEV RANSOMWARE

NTLM Hash Disclosure Spoofing - Info Disclosure

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2024-43451 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added November 12, 2024, with confirmed use in ransomware campaigns. EIP tracks 1 public exploit from researchers including RonF98.

AI-analyzed exploit summary This repository provides a detailed technical writeup on CVE-2024-43451, a vulnerability in Microsoft Windows that allows attackers to capture NTLMv2 password hashes via SMB connections. It includes a step-by-step guide on setting up a POC environment using Responder and creating a malicious URL file to exploit the vulnerability.

Description

NTLM Hash Disclosure Spoofing Vulnerability

Exploits (1)

nomisec WRITEUP 15 stars
by RonF98 · infoleak
https://github.com/RonF98/CVE-2024-43451-POC

This repository provides a detailed technical writeup on CVE-2024-43451, a vulnerability in Microsoft Windows that allows attackers to capture NTLMv2 password hashes via SMB connections. It includes a step-by-step guide on setting up a POC environment using Responder and creating a malicious URL file to exploit the vulnerability.

Classification
Writeup 90%
Attack Type
Info Leak
Complexity
Moderate
Reliability
Reliable
Target: Microsoft Windows (versions before November 2024 Patch)
No auth needed
Prerequisites: Target Windows machine with build number before November 2024 · Remote server with Responder installed · Network connectivity between target and remote server
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (2)

Core 2

Scores

CVSS v3 6.5
EPSS 0.8182
EPSS Percentile 99.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact partial

Details

CISA KEV 2024-11-12
VulnCheck KEV 2024-11-12
InTheWild.io 2024-11-12
ENISA EUVD EUVD-2024-40720
Ransomware Use Confirmed
CWE
CWE-73
Status published
Products (17)
microsoft/windows_10_1507 < 10.0.10240.20826 (2 CPE variants)
microsoft/windows_10_1607 < 10.0.14393.7515 (2 CPE variants)
microsoft/windows_10_1809 < 10.0.17763.6532 (2 CPE variants)
microsoft/windows_10_21h2 < 10.0.19044.5131 (3 CPE variants)
microsoft/windows_10_22h2 < 10.0.19045.5131 (3 CPE variants)
microsoft/windows_11_22h2 < 10.0.22621.4460 (2 CPE variants)
microsoft/windows_11_23h2 < 10.0.22631.4460 (2 CPE variants)
microsoft/windows_11_24h2 < 10.0.26100.2314 (2 CPE variants)
microsoft/windows_server_2008 (2 CPE variants)
microsoft/windows_server_2008 r2 sp1
... and 7 more
Published Nov 12, 2024
KEV Added Nov 12, 2024
Tracked Since Feb 18, 2026