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TI-2026-58845 Aliases CVE-2026-85880GHSA-96fm-jjf3-wv64

Windows Advanced Local Procedure Call (ALPC) Elevation of Privilege Vulnerability

Priority CRITICAL 93Exploited in the wildCWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Privilege escalation
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

Heap-based buffer overflow in Windows ALPC allows an authorized attacker to elevate privileges locally.

Why it matters now

Exploitation Active In CISA KEV since 2026-09-08CISA due date 2026-09-22
EPSS 0.00387 33rd percentileScored 2026-11-07
Fix Fixed Microsoft: 6 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
No
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 10 Version 160710.0.14393.0 to before 10.0.14393.951210.0.14393.9512Patch availableCNA
MicrosoftWindows 10 Version 180910.0.17763.0 to before 10.0.17763.924510.0.17763.9245Patch availableCNA
MicrosoftWindows 10 Version 21H210.0.19044.0 to before 10.0.19044.772510.0.19044.7725Patch availableCNA
MicrosoftWindows 10 Version 22H210.0.19045.0 to before 10.0.19045.772510.0.19045.7725Patch availableCNA
MicrosoftWindows Server 20126.2.9200.0 to before 6.2.9200.263496.2.9200.26349Patch availableCNA
MicrosoftWindows Server 2012 (Server Core installation)6.2.9200.0 to before 6.2.9200.263496.2.9200.26349Patch availableCNA
MicrosoftWindows Server 2012 R26.3.9600.0 to before 6.3.9600.233986.3.9600.23398Patch availableCNA
MicrosoftWindows Server 2012 R2 (Server Core installation)6.3.9600.0 to before 6.3.9600.233986.3.9600.23398Patch availableCNA
MicrosoftWindows Server 201610.0.14393.0 to before 10.0.14393.951210.0.14393.9512Patch availableCNA
MicrosoftWindows Server 2016 (Server Core installation)10.0.14393.0 to before 10.0.14393.951210.0.14393.9512Patch availableCNA
MicrosoftWindows Server 201910.0.17763.0 to before 10.0.17763.924510.0.17763.9245Patch availableCNA
MicrosoftWindows Server 2019 (Server Core installation)10.0.17763.0 to before 10.0.17763.924510.0.17763.9245Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.562210.0.20348.5622Patch availableCNA
  • Windows 10 Version 1607 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9512 Fixed in 10.0.14393.9512 Patch available CNA
  • Windows 10 Version 1809 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.9245 Fixed in 10.0.17763.9245 Patch available CNA
  • Windows 10 Version 21H2 VendorMicrosoft Affected 10.0.19044.0 to before 10.0.19044.7725 Fixed in 10.0.19044.7725 Patch available CNA
  • Windows 10 Version 22H2 VendorMicrosoft Affected 10.0.19045.0 to before 10.0.19045.7725 Fixed in 10.0.19045.7725 Patch available CNA
  • Windows Server 2012 VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.26349 Fixed in 6.2.9200.26349 Patch available CNA
  • Windows Server 2012 (Server Core installation) VendorMicrosoft Affected 6.2.9200.0 to before 6.2.9200.26349 Fixed in 6.2.9200.26349 Patch available CNA
  • Windows Server 2012 R2 VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.23398 Fixed in 6.3.9600.23398 Patch available CNA
  • Windows Server 2012 R2 (Server Core installation) VendorMicrosoft Affected 6.3.9600.0 to before 6.3.9600.23398 Fixed in 6.3.9600.23398 Patch available CNA
  • Windows Server 2016 VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9512 Fixed in 10.0.14393.9512 Patch available CNA
  • Windows Server 2016 (Server Core installation) VendorMicrosoft Affected 10.0.14393.0 to before 10.0.14393.9512 Fixed in 10.0.14393.9512 Patch available CNA
  • Windows Server 2019 VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.9245 Fixed in 10.0.17763.9245 Patch available CNA
  • Windows Server 2019 (Server Core installation) VendorMicrosoft Affected 10.0.17763.0 to before 10.0.17763.9245 Fixed in 10.0.17763.9245 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.5622 Fixed in 10.0.20348.5622 Patch available CNA

CPE configurations NVD · 15

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*before 10.0.14393.9512VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*before 10.0.14393.9512VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*before 10.0.17763.9245VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*before 10.0.17763.9245VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*before 10.0.19044.7725VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*before 10.0.19044.7725VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*before 10.0.19044.7725VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*before 10.0.19045.7725VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*before 10.0.19045.7725VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*before 10.0.19045.7725VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* Versions before 10.0.14393.9512 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* Versions before 10.0.14393.9512 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* Versions before 10.0.17763.9245 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* Versions before 10.0.17763.9245 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* Versions before 10.0.19044.7725 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* Versions before 10.0.19044.7725 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* Versions before 10.0.19044.7725 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* Versions before 10.0.19045.7725 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* Versions before 10.0.19045.7725 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* Versions before 10.0.19045.7725 Vulnerable ·Microsoft
Show 5 more CPE
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 10.0.14393.9512VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:*before 10.0.17763.9245VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.5622VulnerableMicrosoft
  • 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 10.0.14393.9512 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* Versions before 10.0.17763.9245 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.5622 Vulnerable ·Microsoft

Remediation

Microsoft 6 updates

  • KB5123099
    Security Update
    • Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4145.0
    • Windows 10 Version 1607 for 32-bit Systems 10.0.14393.9512
    • Windows 10 Version 1607 for x64-based Systems 10.0.14393.9512
    • Windows Server 2016 10.0.14393.9512
    • Windows Server 2016 (Server Core installation) 10.0.14393.9512
  • KB5123066
    Security Update
    • Windows Server 2012 R2 6.3.9600.23398
    • Windows Server 2012 R2 (Server Core installation) 6.3.9600.23398
  • KB5123065
    Security Update
    • Windows Server 2012 6.2.9200.26349
    • Windows Server 2012 (Server Core installation) 6.2.9200.26349
Show 3 more Microsoft updates
  • KB5122882
    Security Update
    • Windows Server 2022 10.0.20348.5622
    • Windows Server 2022 (Server Core installation) 10.0.20348.5622
  • KB5122878
    Security Update
    • Windows 10 Version 21H2 for 32-bit Systems 10.0.19044.7725
    • Windows 10 Version 21H2 for ARM64-based Systems 10.0.19044.7725
    • Windows 10 Version 21H2 for x64-based Systems 10.0.19044.7725
    • Windows 10 Version 22H2 for 32-bit Systems 10.0.19045.7725
    • Windows 10 Version 22H2 for ARM64-based Systems 10.0.19045.7725
    • Windows 10 Version 22H2 for x64-based Systems 10.0.19045.7725
  • KB5122876
    Security Update
    • Windows 10 Version 1809 for 32-bit Systems 10.0.17763.9245
    • Windows 10 Version 1809 for x64-based Systems 10.0.17763.9245
    • Windows Server 2019 10.0.17763.9245
    • Windows Server 2019 (Server Core installation) 10.0.17763.9245

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Elevation of Privilege
Exploited
Yes
Publicly disclosed
No
Exploitability
Exploitation Detected

Timeline

  1. 2026-09-08 Added to CISA KEV
  2. 2026-10-02 Threatist record created from CVE-2026-85880
  3. 2026-10-03 Alias added: GHSA-96fm-jjf3-wv64
  4. 2026-10-25 EPSS moved to the below the 50th percentile

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