Heap-based Buffer Overflow Affecting microsoft.netcore.app.runtime.win-x64 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)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DOTNET-MICROSOFTNETCOREAPPRUNTIMEWINX64-22412151
- published11 Nov 2026
- disclosed9 Nov 2026
- creditQuac Tran
Introduced: 9 Nov 2026
NewCVE-2026-118745 (opens in a new tab)How to fix?
Upgrade Microsoft.NETCore.App.Runtime.win-x64 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 Heap-based Buffer Overflow when its native reader processes a native PDB whose line metadata exceeds the caller-provided buffer, causing an out-of-bounds write. An attacker can achieve code execution by getting a victim to read an attacker-supplied native PDB through this reader. Exposure is limited to Windows.