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TI-2024-29261 Aliases CVE-2024-43639GHSA-2f2h-73pp-4p79

Windows KDC Proxy Remote Code Execution Vulnerability

Priority MEDIUM 60CWE-197Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Windows KDC Proxy Remote Code Execution Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.08943 95th percentileScored 2026-11-07
Fix Fixed Microsoft: 9 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftWindows Server 202510.0.26100.0 to before 10.0.26100.231410.0.26100.2314Patch availableCNA
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to before 10.0.26100.231410.0.26100.2314Patch availableCNA
MicrosoftWindows Server 201910.0.17763.0 to before 10.0.17763.653210.0.17763.6532Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to before 10.0.17763.653210.0.17763.6532Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.284910.0.20348.2849Patch availableCNA
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 to before 10.0.25398.125110.0.25398.1251Patch availableCNA
MicrosoftWindows Server 201610.0.14393.0 to before 10.0.14393.751510.0.14393.7515Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to before 10.0.14393.751510.0.14393.7515Patch availableCNA
MicrosoftWindows Server 20126.2.9200.0 to before 6.2.9200.251656.2.9200.25165Patch availableCNA
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to before 6.2.9200.251656.2.9200.25165Patch availableCNA
MicrosoftWindows Server 2012 R26.3.9600.0 to before 6.3.9600.222676.3.9600.22267Patch availableCNA
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to before 6.3.9600.222676.3.9600.22267Patch availableCNA
  • Windows Server 2025 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.2314 Fixed in 10.0.26100.2314 Patch available CNA
  • Windows Server 2025 (Server Core installation) VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.2314 Fixed in 10.0.26100.2314 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.6532 Fixed in 10.0.17763.6532 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.6532 Fixed in 10.0.17763.6532 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.2849 Fixed in 10.0.20348.2849 Patch available CNA
  • Windows Server 2022, 23H2 Edition (Server Core installation) VendorMicrosoft Affected 10.0.25398.0 to before 10.0.25398.1251 Fixed in 10.0.25398.1251 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.7515 Fixed in 10.0.14393.7515 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.7515 Fixed in 10.0.14393.7515 Patch available CNA
  • Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.25165 Fixed in 6.2.9200.25165 Patch available CNA
  • Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.25165 Fixed in 6.2.9200.25165 Patch available CNA
  • Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.22267 Fixed in 6.3.9600.22267 Patch available CNA
  • Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.22267 Fixed in 6.3.9600.22267 Patch available CNA

CPE configurations NVD · 7

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*r2VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:*before 10.0.14393.7515VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*before 10.0.17763.6532VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.2849VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*before 10.0.25398.1251VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*before 10.0.26100.2314VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* Versions before 10.0.14393.7515 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* Versions before 10.0.17763.6532 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.2849 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* Versions before 10.0.25398.1251 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* Versions before 10.0.26100.2314 Vulnerable ·Microsoft

Remediation

Microsoft 9 updates

  • KB5046698
    SecurityHotpatchUpdate
    • Windows Server 2022 10.0.20348.2819
    • Windows Server 2022 (Server Core installation) 10.0.20348.2819
  • KB5046697
    Monthly Rollup
    • Windows Server 2012 6.2.9200.25165
    • Windows Server 2012 (Server Core installation) 6.2.9200.25165
  • KB5046696
    SecurityHotpatchUpdate
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.2240
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.2240
    • Windows Server 2025 10.0.26100.2240
    • Windows Server 2025 (Server Core installation) 10.0.26100.2240
Show 6 more Microsoft updates
  • KB5046682
    Monthly Rollup
    • Windows Server 2012 R2 6.3.9600.22267
    • Windows Server 2012 R2 (Server Core installation) 6.3.9600.22267
  • KB5046618
    Security Update
    • Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1251
  • KB5046617
    Security Update
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.2314
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.2314
    • Windows Server 2025 10.0.26100.2314
    • Windows Server 2025 (Server Core installation) 10.0.26100.2314
  • KB5046616
    Security Update
    • Windows Server 2022 10.0.20348.2849
    • Windows Server 2022 (Server Core installation) 10.0.20348.2849
  • KB5046615
    Security Update
    • Windows 10 Version 1809 for 32-bit Systems 10.0.17763.6532
    • Windows 10 Version 1809 for x64-based Systems 10.0.17763.6532
    • Windows Server 2019 10.0.17763.6532
    • Windows Server 2019 (Server Core installation) 10.0.17763.6532
  • KB5046612
    Security Update
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.7515
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.7515
    • Windows Server 2016 10.0.14393.7515
    • Windows Server 2016 (Server Core installation) 10.0.14393.7515

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Remote Code Execution
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-43639
  2. 2026-10-03 Alias added: GHSA-2f2h-73pp-4p79

References

Patch 1

  • TI-2025-36863 Windows Server Update Service (WSUS) Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01431 Netlogon Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 10.0
  • TI-2020-01310 Improper input validation in Microsoft Windows Server KEVCVSS 3.1CRITICAL 10.0
  • TI-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
  • TI-2015-01465 HTTP.sys in Microsoft Windows 7 SP1, Windows Server 2008 R2 SP1, Windows 8, Windows 8.1… KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-01009 Improper input validation in Microsoft Windows Server KEVCVSS 3.1CRITICAL 9.0
See all 5293 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences