SB20260216167 - Ubuntu update for dotnet10
Published: February 16, 2026
Security Bulletin ID
SB20260216167
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Handling of Missing Special Element (CVE-ID: CVE-2026-21218)
CWE-ID: CWE-166 - Improper Handling of Missing Special Element
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper handling of missing special element in .NET. A remote attacker can perform spoofing attack on the system.
Remediation
Install update from vendor's website.