Improper Handling of Missing Special Element Affecting dotnet6 package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.03% (9th percentile)

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  • Snyk IDSNYK-UBUNTU2204-DOTNET6-15357045
  • published26 Feb 2026
  • disclosed10 Feb 2026

Introduced: 10 Feb 2026

NewCVE-2026-21218  (opens in a new tab)
CWE-166  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:22.04 dotnet6.

NVD Description

Note: Versions mentioned in the description apply only to the upstream dotnet6 package and not the dotnet6 package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network.

CVSS Base Scores

version 3.1