by Kastro
Paper/Archive/CVE-2026-105016

CVE-2026-105016

Microsoft .NET 10.0 runtime — Microsoft QUIC Remote Code Execution Vulnerability

EPSS 2%CVSS 9.8
critical.is priorityof 100
45
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 76.6.766 × 2015.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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

Affected

ProductAffectedFixed inSource
.NET 10.0 runtime10.0.0 – < 10.0.1410.0.14CNA
.NET 11.0 runtime11.0.0 – < 11.0.0-rc.2.26504.10511.0.0-rc.2.26504.105CNA
.NET 8.0 runtime8.0.0 – < 8.0.328.0.32CNA
.NET 9.0 runtime9.0.0 – < 9.0.219.0.21CNA
Microsoft Visual Studio 2022 version 17.1417.14.0 – < 17.14.4217.14.42CNA
Microsoft Visual Studio 2026 version 18.1018.10.0 – < 18.10.418.10.4CNA
Windows 11 version 23H210.0.22631.0 – < 10.0.22631.765210.0.22631.7652CNA
Windows 11 Version 23H210.0.22631.0 – < 10.0.22631.765210.0.22631.7652CNA
Windows 11 Version 24H210.0.26100.0 – < 10.0.26100.971110.0.26100.9711CNA
Windows 11 Version 25H210.0.26200.0 – < 10.0.26200.971110.0.26200.9711CNA
Windows 11 version 26H110.0.28000.0 – < 10.0.28000.323110.0.28000.3231CNA
Windows 11 Version 26H210.0.26300.0 – < 10.0.26300.971110.0.26300.9711CNA

Scores by source

microsoft (CNA)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
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

patchmsrc.microsoft.com/update-guide/vulnerability/CVE-2026-105016