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TI-2025-21235 Aliases CVE-2025-29828GHSA-vjfq-34vr-xpmm

Windows Schannel Remote Code Execution Vulnerability

Priority MEDIUM 40CWE-401Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
High
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

Missing release of memory after effective lifetime in Windows Cryptographic Services allows an unauthorized attacker to execute code over a network.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01268 69th percentileScored 2026-11-07
Fix Fixed Microsoft: 6 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
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 11 version 22H210.0.22621.0 to before 10.0.22621.547210.0.22621.5472Patch availableCNA
MicrosoftWindows 11 version 22H310.0.22631.0 to before 10.0.22631.547210.0.22631.5472Patch availableCNA
MicrosoftWindows 11 Version 23H210.0.22631.0 to before 10.0.22631.547210.0.22631.5472Patch availableCNA
MicrosoftWindows 11 Version 24H210.0.26100.0 to before 10.0.26100.434910.0.26100.4349Patch availableCNA
MicrosoftWindows Server 202210.0.20348.0 to before 10.0.20348.380710.0.20348.3807Patch availableCNA
MicrosoftWindows Server 2022, 23H2 Edition (Server Core installation)10.0.25398.0 to before 10.0.25398.166510.0.25398.1665Patch availableCNA
MicrosoftWindows Server 202510.0.26100.0 to before 10.0.26100.434910.0.26100.4349Patch availableCNA
MicrosoftWindows Server 2025 (Server Core installation)10.0.26100.0 to before 10.0.26100.434910.0.26100.4349Patch availableCNA
  • Windows 11 version 22H2 VendorMicrosoft Affected 10.0.22621.0 to before 10.0.22621.5472 Fixed in 10.0.22621.5472 Patch available CNA
  • Windows 11 version 22H3 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.5472 Fixed in 10.0.22631.5472 Patch available CNA
  • Windows 11 Version 23H2 VendorMicrosoft Affected 10.0.22631.0 to before 10.0.22631.5472 Fixed in 10.0.22631.5472 Patch available CNA
  • Windows 11 Version 24H2 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4349 Fixed in 10.0.26100.4349 Patch available CNA
  • Windows Server 2022 VendorMicrosoft Affected 10.0.20348.0 to before 10.0.20348.3807 Fixed in 10.0.20348.3807 Patch available CNA
  • Windows Server 2022, 23H2 Edition (Server Core installation) VendorMicrosoft Affected 10.0.25398.0 to before 10.0.25398.1665 Fixed in 10.0.25398.1665 Patch available CNA
  • Windows Server 2025 VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4349 Fixed in 10.0.26100.4349 Patch available CNA
  • Windows Server 2025 (Server Core installation) VendorMicrosoft Affected 10.0.26100.0 to before 10.0.26100.4349 Fixed in 10.0.26100.4349 Patch available CNA

CPE configurations NVD · 6

CPEVersionsRoleVendor
cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:*before 10.0.22621.5472VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:*before 10.0.22631.5472VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:*before 10.0.26100.4270VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:*before 10.0.20348.3745VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:*before 10.0.25398.1665VulnerableMicrosoft
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:*before 10.0.26100.4270VulnerableMicrosoft
  • cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* Versions before 10.0.22621.5472 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* Versions before 10.0.22631.5472 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:* Versions before 10.0.26100.4270 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* Versions before 10.0.20348.3745 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* Versions before 10.0.25398.1665 Vulnerable ·Microsoft
  • cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* Versions before 10.0.26100.4270 Vulnerable ·Microsoft

Remediation

Microsoft 6 updates

  • KB5060999
    Security Update
    • Windows 11 Version 22H2 for ARM64-based Systems 10.0.22621.5472
    • Windows 11 Version 22H2 for x64-based Systems 10.0.22621.5472
    • Windows 11 Version 23H2 for ARM64-based Systems 10.0.22631.5472
    • Windows 11 Version 23H2 for x64-based Systems 10.0.22631.5472
  • KB5060842
    Security Update
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.4349
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.4349
    • Windows Server 2025 10.0.26100.4349, 10.0.26200.4349
    • Windows Server 2025 (Server Core installation) 10.0.26100.4349, 10.0.26200.4349
  • KB5060841
    SecurityHotpatchUpdate
    • Windows 11 Version 24H2 for ARM64-based Systems 10.0.26100.4270
    • Windows 11 Version 24H2 for x64-based Systems 10.0.26100.4270
    • Windows Server 2025 10.0.26100.4270
    • Windows Server 2025 (Server Core installation) 10.0.26100.4270
Show 3 more Microsoft updates
  • KB5060526
    Security Update
    • Windows Server 2022 10.0.20348.3807
    • Windows Server 2022 (Server Core installation) 10.0.20348.3807
  • KB5060525
    SecurityHotpatchUpdate
    • Windows Server 2022 10.0.20348.3745
    • Windows Server 2022 (Server Core installation) 10.0.20348.3745
  • KB5060118
    Security Update
    • Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1665

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-2025-29828
  2. 2026-10-03 Alias added: GHSA-vjfq-34vr-xpmm

References

Patch 1

  • TI-2025-24062 Windows SMB Client Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2025-24042 Internet Shortcut Files Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2024-32708 Windows Task Scheduler Elevation of Privilege Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2024-29106 Windows MSHTML Platform Spoofing Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2024-19802 Windows MSHTML Platform Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
  • TI-2024-19751 SmartScreen Prompt Security Feature Bypass Vulnerability KEVCVSS 3.1HIGH 8.8
See all 1651 →

Sources

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