CVE-2026-85790

Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network.
References
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*

Configuration 2 (hide)

AND
cpe:2.3:a:microsoft:native.quic.msquic.schannel:*:*:*:*:*:*:*:*
OR cpe:2.3:a:microsoft:.net:8.0.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:9.0.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:10.0.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:*:*:*:*:*:*:*

Configuration 3 (hide)

OR cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*

History

22 Oct 2026, 22:19

Type Values Removed Values Added
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85790 - Vendor Advisory, Patch () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85790 - Patch, Vendor Advisory

16 Oct 2026, 18:43

Type Values Removed Values Added
First Time Microsoft windows 11 26h1
Microsoft native.quic.msquic.schannel
Microsoft visual Studio 2022
Microsoft
Microsoft windows Server 2022
Microsoft windows 11 26h2
Microsoft windows Server 2025
Microsoft visual Studio 2026
Microsoft windows 11 25h2
Microsoft .net
Microsoft windows 11 24h2
Microsoft windows 11 23h2
References () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85790 - () https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-85790 - Vendor Advisory, Patch
CPE cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*
cpe:2.3:a:microsoft:.net:9.0.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:11.0.0:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:native.quic.msquic.schannel:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:.net:10.0.0:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*
cpe:2.3:a:microsoft:visual_studio_2022:*:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:visual_studio_2026:*:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*
cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*
cpe:2.3:o:microsoft:windows_11_26h2:*:*:*:*:*:*:arm64:*
cpe:2.3:a:microsoft:.net:8.0.0:*:*:*:*:*:*:*
cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:*

13 Oct 2026, 19:21

Type Values Removed Values Added
New CVE

Information

Published : 2026-10-13 19:21

Updated : 2026-10-22 22:19


NVD link : CVE-2026-85790

Mitre link : CVE-2026-85790

CVE.ORG link : CVE-2026-85790


JSON object : View

Products Affected

microsoft

  • windows_11_26h2
  • native.quic.msquic.schannel
  • windows_11_25h2
  • windows_11_23h2
  • visual_studio_2022
  • windows_11_24h2
  • windows_11_26h1
  • windows_server_2025
  • .net
  • visual_studio_2026
  • windows_server_2022
CWE
CWE-416

Use After Free