Oct 2026: Microsoft QUIC Remote Code Execution Vulnerability
CVE-2026-105016 Published on October 13, 2026

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

Vendor Advisory NVD

Vulnerability Analysis

Exploitation:
NONE
Automatable:
YES
Technical Impact:
TOTAL

Weakness Type

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().


Products Associated with CVE-2026-105016

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Affected Versions

Microsoft .NET 10.0 runtime: Microsoft .NET 11.0 runtime: Microsoft .NET 8.0 runtime: Microsoft .NET 9.0 runtime: Microsoft Visual Studio 2022 version 17.14: Microsoft Visual Studio 2026 version 18.10: Microsoft Windows 11 version 23H2: Microsoft Windows 11 Version 23H2: Microsoft Windows 11 Version 24H2: Microsoft Windows 11 Version 25H2: Microsoft Windows 11 version 26H1: Microsoft Windows 11 Version 26H2: Microsoft Windows Server 2022: Microsoft Windows Server 2025: Microsoft Windows Server 2025 (Server Core installation):

Exploit Probability

EPSS
1.66%
Percentile
77.00%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.