CVE-2026-105016CriticalMicrosoft CVSS 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Microsoft security update for CVE-2026-105016

Published
October 13, 2026
Last Modified
—

🔗 CVE IDs covered (1)

CVE-2026-105016 →

📋 Microsoft's advisory

EchelonGraph does not copy Microsoft's advisory page: its FAQ and remediation text are not shown here. Read the advisory on https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-105016. This page also shows what EchelonGraph holds for CVE-2026-105016, with the description from its CVE record, which the CVE Numbering Authority that assigned the CVE wrote: for a CVE Microsoft assigned, often in the words of Microsoft's own advisory.

🎯 Affected products20

  • .NET 10.0 runtime installed on Windows
  • .NET 11.0 runtime installed on Windows
  • .NET 8.0 runtime installed on Windows
  • .NET 9.0 runtime installed on Windows
  • Microsoft Visual Studio 2022 version 17.14
  • Microsoft Visual Studio 2026 version 18.10
  • Windows 11 Version 23H2 for ARM64-based Systems
  • Windows 11 Version 23H2 for x64-based Systems
  • Windows 11 Version 24H2 for ARM64-based Systems
  • Windows 11 Version 24H2 for x64-based Systems
  • Windows 11 Version 25H2 for ARM64-based Systems
  • Windows 11 Version 25H2 for x64-based Systems
  • Windows 11 Version 26H1 for ARM64-based Systems
  • Windows 11 Version 26H2 for ARM64-based Systems
  • Windows 11 Version 26H2 for x64-based Systems
  • Windows 11 version 26H1 for x64-based Systems
  • Windows Server 2022
  • Windows Server 2022 (Server Core installation)
  • Windows Server 2025
  • Windows Server 2025 (Server Core installation)

✅ Updates Microsoft lists: 5 KB articles and 6 other updates

13 rows: one per KB article or update, update type and fixed build. Their details are on Microsoft's advisory.

KB articleUpdateFixed build
KB5126655Security Update10.0.20348.5761
KB5126653Security Update10.0.22631.7652
KB5127648Security Update10.0.26100.9711
KB5127648Security Update10.0.26200.9711
KB5127648Security Update10.0.26300.9711
KB5126646Security Update10.0.26100.33650
KB5127646Security Update10.0.28000.3231
—Security Update18.10.4
—Security Update17.14.42
—Security Update8.0.32
—Security Update9.0.21
—Security Update10.0.14
—Security Update11.0.0-rc.2.26504.105

🧭 EchelonGraph on CVE-2026-105016

EchelonGraph score
9.8 CRITICAL
CISA KEV
Not listed
Fix status
A fix is available — apply it.

Description from the CVE record (CVE.org), as published by its numbering authority

Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.

Published by Microsoft Corporation, the CVE Numbering Authority that assigned CVE-2026-105016, in its CVE record at CVE.org; reused under the CVE Program's Terms of Use (its licence and MITRE's copyright notice are in our Terms of Service).

🔗 References (22)