SB2026021099 - Improper Handling of Missing Special Element in Microsoft .NET
Published: February 10, 2026
Security Bulletin ID
SB2026021099
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 security vulnerability.
1) Improper Handling of Missing Special Element (CVE-ID: CVE-2026-21218)
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.