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5.9 Medium

CVE-2026-85790 Use after free in Microsoft QUIC allows an unauthorized attacker to disclose information over a network

Description

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

Affected products and versions

Product Affected versions Fixed in
Microsoft Visual Studio 2022 version 17.14 17.14 17.14.0 → < 17.14.42 17.14.42
Microsoft Visual Studio 2026 version 18.10 18.10 18.10.0 → < 18.10.4 18.10.4
Microsoft.Native.Quic.MsQuic.Schannel 1.9 1.9.0 → < 2.6.2 2.6.2
Windows 11 Version 23H2 10.0 10.0.22631.0 → < 10.0.22631.7652 10.0.22631.7652
Windows 11 Version 24H2 10.0 10.0.26100.0 → < 10.0.26100.9711 10.0.26100.9711
Windows 11 Version 25H2 10.0 10.0.26200.0 → < 10.0.26200.9711 10.0.26200.9711
Windows 11 version 26H1 10.0 10.0.28000.0 → < 10.0.28000.3231 10.0.28000.3231
Windows 11 Version 26H2 10.0 10.0.26300.0 → < 10.0.26300.9711 10.0.26300.9711
Windows Server 2022 10.0 10.0.20348.0 → < 10.0.20348.5761 10.0.20348.5761
Show the 2 other branches
Product Affected versions Fixed in
Windows Server 2025 10.0 10.0.26100.0 → < 10.0.26100.33650 10.0.26100.33650
Windows Server 2025 (Server Core installation) 10.0 10.0.26100.0 → < 10.0.26100.33650 10.0.26100.33650

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Microsoft Visual Studio 2022 version 17.14

The 92 CVEs of Microsoft Visual Studio 2022 version 17.14 →
CVE-2026-118147 Improper certificate validation in Visual Studio allows an unauthorized attacker to perform spoofing over a network 7.4 High CVE-2026-109468 Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service… 7.5 High CVE-2026-105016 Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network 9.8 Critical CVE-2026-70162 A denial of service vulnerability exists when Microsoft Common Object Runtime Library improperly handles web requests 5.9 Medium
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