attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products
see table below
Classified as
CWE-122 (Heap-based Buffer Overflow)
Affected Products, Subsystems & Sectors
Vendor
Product
Affected Versions
Patch Status
Microsoft
Windows 11 (version 23H2)
Microsoft
Windows 11 (version 24H2)
Microsoft
Windows 11 (version 25H2)
Microsoft
Windows 11 (version 26H1)
Microsoft
Windows Server 2025
Microsoft
Windows Server 2022
Microsoft
Windows 11 Version 26H2
Microsoft
.NET 10.0
Microsoft
.NET 11.0
Microsoft
.NET 8.0
Microsoft
.NET 9.0
Microsoft
Microsoft Visual Studio 2022 version 17.14
Microsoft
Microsoft Visual Studio 2026 version 18.10
Subsystems
OT Supporting Infrastructure
Sectors
All Sectors
What to Know
Heap-based buffer overflow in Microsoft QUIC allows an unauthorized attacker to execute code over a network.
What to Do
Monitor Microsoft's web page for any future patch releases.