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TI-2026-37244 Aliases CVE-2026-50508GHSA-hr5m-mp7v-gw8f

Windows NTLM Spoofing Vulnerability

Priority MEDIUM 46CWE-200Published · Updated

Key facts

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

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

Summary

Exposure of sensitive information to an unauthorized actor in Windows NTLM allows an unauthorized attacker to perform spoofing over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.11441 96th percentileScored 2026-11-07
Fix Fixed Microsoft: 6 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

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 10 Version 160710.0.14393.0 to before 10.0.14393.923410.0.14393.9234Patch availableCNA
MicrosoftWindows 11 version 22H210.0.22621.0 to before 10.0.22631.721910.0.22631.7219Patch availableCNA
MicrosoftWindows Server 20126.2.9200.0 to before 6.2.9200.261326.2.9200.26132Patch availableCNA
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to before 6.2.9200.261326.2.9200.26132Patch availableCNA
MicrosoftWindows Server 2012 R26.3.9600.0 to before 6.3.9600.232286.3.9600.23228Patch availableCNA
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to before 6.3.9600.232286.3.9600.23228Patch availableCNA
MicrosoftWindows Server 201610.0.14393.0 to before 10.0.14393.923410.0.14393.9234Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to before 10.0.14393.923410.0.14393.9234Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.525610.0.20348.5256Patch availableCNA
MicrosoftWindows Server version 200410.0.0 to before 10.0.19045.741710.0.19045.7417Patch availableCNA
  • Windows 10 Version 1607 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9234 Fixed in 10.0.14393.9234 Patch available CNA
  • Windows 11 version 22H2 VendorMicrosoft Affected 10.0.22621.0 to before 10.0.22631.7219 Fixed in 10.0.22631.7219 Patch available CNA
  • Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.26132 Fixed in 6.2.9200.26132 Patch available CNA
  • Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.26132 Fixed in 6.2.9200.26132 Patch available CNA
  • Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.23228 Fixed in 6.3.9600.23228 Patch available CNA
  • Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.23228 Fixed in 6.3.9600.23228 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9234 Fixed in 10.0.14393.9234 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9234 Fixed in 10.0.14393.9234 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.5256 Fixed in 10.0.20348.5256 Patch available CNA
  • Windows Server version 2004 VendorMicrosoft Affected 10.0.0 to before 10.0.19045.7417 Fixed in 10.0.19045.7417 Patch available CNA

CPE configurations NVD · 9

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*before 10.0.14393.9234VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*before 10.0.14393.9234VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:*before 10.0.22631.7219VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:*before 10.0.22631.7219VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:x64:*before 10.0.19045.7417VulnerableMicrosoft
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 10.0.14393.9234VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.5256VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* Versions before 10.0.14393.9234 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* Versions before 10.0.14393.9234 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:arm64:* Versions before 10.0.22631.7219 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:x64:* Versions before 10.0.22631.7219 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2004:*:*:*:*:*:*:x64:* Versions before 10.0.19045.7417 Vulnerable ·Microsoft
  • 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 10.0.14393.9234 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.5256 Vulnerable ·Microsoft

Remediation

Microsoft 6 updates

  • KB5094128
    Security Update
    • Windows Server 2022 10.0.20348.5256
    • Windows Server 2022 (Server Core installation) 10.0.20348.5256
  • KB5094127
    Security Update
    • Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.7417
    • Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7417
    • Windows 10 Version 21H2 for x64-based Systems 10.0.19044.7417
    • Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.7417
    • Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7417
    • Windows 10 Version 22H2 for x64-based Systems 10.0.19045.7417
    • Windows Server, version 2004 (Server Core installation) 10.0.19045.7417
  • KB5094122
    Security Update
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.9234
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.9234
    • Windows Server 2016 10.0.14393.9234
    • Windows Server 2016 (Server Core installation) 10.0.14393.9234
Show 3 more Microsoft updates
  • KB5094042
    Monthly Rollup
    • Windows Server 2012 6.2.9200.26132
    • Windows Server 2012 (Server Core installation) 6.2.9200.26132
  • KB5094041
    Monthly Rollup
    • Windows Server 2012 R2 6.3.9600.23228
    • Windows Server 2012 R2 (Server Core installation) 6.3.9600.23228
  • KB5093998
    Security Update
    • Windows 11 Version 22H2 for ARM64-based Systems 10.0.22631.7219
    • Windows 11 Version 22H2 for x64-based Systems 10.0.22631.7219
    • Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.7219
    • Windows 11 Version 23H2 for x64-based Systems 10.0.22631.7219

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Spoofing
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation More Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-50508
  2. 2026-10-03 Alias added: GHSA-hr5m-mp7v-gw8f
  3. 2026-10-25 EPSS moved to the 95th–99th percentile
  4. 2026-10-25 Priority changed: LOW → MEDIUM

References

Patch 1

  • TI-2026-26194 Windows Internet Key Exchange (IKE) Service Extensions Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2017-06077 Microsoft Windows XP SP3, Windows XP x64 XP2, Windows Server 2003 SP2, Windows Vista… KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-73128 Windows Shell Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17367 MSHTML Framework Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2026-17364 Windows Shell Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2025-24062 Windows SMB Client Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 8.8
See all 3427 →

Sources

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