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7.5 High

CVE-2026-21218 Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network

Description

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

Affected products and versions

Product Affected versions Fixed in
.NET 10.0 10.0 10.0.0 → < 10.0.3 10.0.3
.NET 8.0 8.0 8.0.0 → < 8.0.24 8.0.24
.NET 9.0 9.0 9.0.0 → < 9.0.13 9.0.13

References

Timeline

  1. Published
  2. Last modified

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