Untrusted Pointer Dereference Affecting microsoft.netcore.app.runtime.win-x86 package, versions [8.0.0-preview.1.23110.8,8.0.34)[9.0.0-preview.1.24080.9,9.0.23)[10.0.0-preview.1.25080.5,10.0.15)[11.0.0-preview.1.26104.118,11.0.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.95% (62nd percentile)

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  • Snyk IDSNYK-DOTNET-MICROSOFTNETCOREAPPRUNTIMEWINX86-22412156
  • published11 Nov 2026
  • disclosed9 Nov 2026
  • creditC0rk1,41ae55e9310ff27fa6f26af4727e5590

Introduced: 9 Nov 2026

NewCVE-2026-114152  (opens in a new tab)
CWE-121  (opens in a new tab)
CWE-822  (opens in a new tab)

How to fix?

Upgrade Microsoft.NETCore.App.Runtime.win-x86 to version 8.0.34, 9.0.23, 10.0.15, 11.0.0 or higher.

Overview

Affected versions of this package are vulnerable to Untrusted Pointer Dereference in its native DiaObjectFile::ApplyFixup function, which applies attacker-controlled COFF relocation offsets as pointers without validation and writes out of bounds. An attacker can achieve code execution by getting a victim to load document specifications from a PDB that references an attacker-influenced COFF object through this reader. Exposure is limited to Windows.

CVSS Base Scores

version 4.0
version 3.1