CVE-2026-21218
Published: February 14, 2026Last modified: February 23, 2026
Description
Improper handling of missing special element in .NET allows an unauthorized attacker to perform spoofing over a network.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack Vector | NETWORK |
| Attack complexity | LOW |
| Privileges required | NONE |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | NONE |
| Integrity impact | HIGH |
| Availability impact | NONE |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 25 LTS | dotnet8-runtime | Fixed (8.0.24-r0) |
| dotnet8-sdk | Fixed (8.0.124-r0) | ||
| Stream | dotnet8-runtime | Fixed (8.0.24-r0) | |
| dotnet8-sdk | Fixed (8.0.124-r0) |