Heap-based Buffer Overflow Affecting microsoft.diasymreader.native package, versions [17.10.0-beta1.24272.1,18.9.0-beta1.26405.2)
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-MICROSOFTDIASYMREADERNATIVE-19659758
- published10 Sept 2026
- disclosed9 Sept 2026
- creditUnknown
Introduced: 9 Sep 2026
NewCVE-2026-69439 (opens in a new tab)How to fix?
Upgrade Microsoft.DiaSymReader.Native to version 18.9.0-beta1.26405.2 or higher.
Overview
Microsoft.DiaSymReader.Native is a Native implementation of PDB file reader and writer.
Affected versions of this package are vulnerable to Heap-based Buffer Overflow via the parsing process of Portable PDB files. An attacker can perform an out-of-bounds write and cause unintended or a denial of service by supplying a specially crafted Portable PDB file.