CVE-2024-43451

Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability

Microsoft — Windows

Added to KEV catalog: 12 November 2024
Federal remediation due date: 3 December 2024
Weakness classification (CWE): CWE-73

CISA Description

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.

Required action

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

Notes

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43451 ; https://nvd.nist.gov/vuln/detail/CVE-2024-43451

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