Insecure Temporary File Affecting dotnet-host package, versions <0:9.0.10-1.amzn2023.0.1


Severity

Recommended
critical

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.56% (43rd percentile)

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  • Snyk IDSNYK-AMZN2023-DOTNETHOST-13709942
  • published24 Oct 2025
  • disclosed14 Oct 2025

Introduced: 14 Oct 2025

CVE-2025-55247  (opens in a new tab)
CWE-377  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 dotnet-host to version 0:9.0.10-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2025-1231.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dotnet-host package and not the dotnet-host package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

Improper link resolution before file access ('link following') in .NET allows an authorized attacker to elevate privileges locally.

CVSS Base Scores

version 3.1