CVE-2024-43451 (GCVE-0-2024-43451)

Vulnerability from cvelistv5 – Published: 2024-11-12 17:53 – Updated: 2025-10-21 22:55
VLAI? CISA KEV
Title
NTLM Hash Disclosure Spoofing Vulnerability
Summary
NTLM Hash Disclosure Spoofing Vulnerability
Severity ?
6.5 (Medium)
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
CWE
  • CWE-73 - External Control of File Name or Path
Assigner
References
Impacted products
Vendor Product Version
Microsoft Windows Server 2025 Affected: 10.0.26100.0 , < 10.0.26100.2314 (custom)
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Microsoft Windows Server 2025 (Server Core installation) Affected: 10.0.26100.0 , < 10.0.26100.2314 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1809 Affected: 10.0.17763.0 , < 10.0.17763.6532 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 Affected: 10.0.17763.0 , < 10.0.17763.6532 (custom)
Create a notification for this product.
Microsoft Windows Server 2019 (Server Core installation) Affected: 10.0.17763.0 , < 10.0.17763.6532 (custom)
Create a notification for this product.
Microsoft Windows Server 2022 Affected: 10.0.20348.0 , < 10.0.20348.2849 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 21H2 Affected: 10.0.19043.0 , < 10.0.19044.5131 (custom)
Create a notification for this product.
Microsoft Windows 11 version 22H2 Affected: 10.0.22621.0 , < 10.0.22621.4460 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 22H2 Affected: 10.0.19045.0 , < 10.0.19045.5131 (custom)
Create a notification for this product.
Microsoft Windows 11 version 22H3 Affected: 10.0.22631.0 , < 10.0.22631.4460 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 23H2 Affected: 10.0.22631.0 , < 10.0.22631.4460 (custom)
Create a notification for this product.
Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) Affected: 10.0.25398.0 , < 10.0.25398.1251 (custom)
Create a notification for this product.
Microsoft Windows 11 Version 24H2 Affected: 10.0.26100.0 , < 10.0.26100.2314 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1507 Affected: 10.0.10240.0 , < 10.0.10240.20826 (custom)
Create a notification for this product.
Microsoft Windows 10 Version 1607 Affected: 10.0.14393.0 , < 10.0.14393.7515 (custom)
Create a notification for this product.
Microsoft Windows Server 2016 Affected: 10.0.14393.0 , < 10.0.14393.7515 (custom)
Create a notification for this product.
Microsoft Windows Server 2016 (Server Core installation) Affected: 10.0.14393.0 , < 10.0.14393.7515 (custom)
Create a notification for this product.
Microsoft Windows Server 2008 Service Pack 2 Affected: 6.0.6003.0 , < 6.0.6003.22966 (custom)
Create a notification for this product.
Microsoft Windows Server 2008 Service Pack 2 (Server Core installation) Affected: 6.0.6003.0 , < 6.0.6003.22966 (custom)
Create a notification for this product.
Microsoft Windows Server 2008 Service Pack 2 Affected: 6.0.6003.0 , < 6.0.6003.22966 (custom)
Create a notification for this product.
Microsoft Windows Server 2008 R2 Service Pack 1 Affected: 6.1.7601.0 , < 6.1.7601.27415 (custom)
Create a notification for this product.
Microsoft Windows Server 2008 R2 Service Pack 1 (Server Core installation) Affected: 6.1.7601.0 , < 6.1.7601.27415 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 Affected: 6.3.9600.0 , < 6.3.9600.22267 (custom)
Create a notification for this product.
Microsoft Windows Server 2012 R2 (Server Core installation) Affected: 6.3.9600.0 , < 6.3.9600.22267 (custom)
Create a notification for this product.
Date Public ?
2024-11-12 08:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: ccef5aec-1f65-49be-a68a-8dad7484c16b

Vulnerability ID: CVE-2024-43451

Status: Confirmed

Status Updated: 2024-11-12 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2024-11-12
Asserted: 2024-11-12
Scope
Notes: KEV entry: Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability | Affected: Microsoft / Windows | 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. | Due date: 2024-12-03 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43451 ; https://nvd.nist.gov/vuln/detail/CVE-2024-43451
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-73
Feed CISA Known Exploited Vulnerabilities Catalog
Product Windows
Due Date 2024-12-03
Date Added 2024-11-12
Vendorproject Microsoft
Vulnerabilityname Microsoft Windows NTLMv2 Hash Disclosure Spoofing Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-02-02 13:24 UTC | Updated: 2026-02-06 07:53 UTC
Show details on NVD website
To clipboard 

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\"cpe:2.3:o:microsoft:windows_server_2008_sp2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.6003.22966\", \"versionStartIncluding\": \"6.0.6003.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2008_sp2:*:*:*:*:*:*:x86:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.6003.22966\", \"versionStartIncluding\": \"6.0.6003.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.7601.27415\", \"versionStartIncluding\": \"6.1.7601.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2008_R2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.7601.27415\", \"versionStartIncluding\": \"6.1.7601.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3.9600.22267\", \"versionStartIncluding\": \"6.3.9600.0\"}, {\"criteria\": \"cpe:2.3:o:microsoft:windows_server_2012_R2:*:*:*:*:*:*:x64:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.3.9600.22267\", \"versionStartIncluding\": \"6.3.9600.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"shortName\": \"microsoft\", \"dateUpdated\": \"2025-07-08T15:41:15.636Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-43451\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-10-21T22:55:37.170Z\", \"dateReserved\": \"2024-08-14T01:08:33.514Z\", \"assignerOrgId\": \"f38d906d-7342-40ea-92c1-6c4a2c6478c8\", \"datePublished\": \"2024-11-12T17:53:48.946Z\", \"assignerShortName\": \"microsoft\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.