KB5126105
Security update fixing 6 CVEs
0Windows versions
6CVEs fixed · 0 critical
0Exploited or in CISA KEV
0Open known issues affecting it
YesRestart required (per MSRC)
Known issues in this update
Windows release healthNo known issues listed
Windows release health lists no issues from this KB or the update it builds on.
Issues this update resolves
No resolved issues listed
Windows release health names no issues fixed by this KB.
Security fixes
6 Microsoft CVEs · most urgent first| CVE | Vulnerability | Severity | CVSS | EPSS | Impact | Status |
|---|---|---|---|---|---|---|
| CVE-2026-69439 | .NET and Visual Studio Elevation of Privilege Vulnerability.NET and Visual Studio | Important | 8.8 | 0.9% | Elevation of Privilege | Revised 25 Sep |
| CVE-2026-69522 | .NET and Visual Studio Remote Code Execution VulnerabilityVisual Studio | Important | 8.8 | 0.9% | Remote Code Execution | Revised 25 Sep |
| CVE-2026-71328 | .NET and Visual Studio Remote Code Execution VulnerabilityVisual Studio | Important | 8.8 | 0.8% | Remote Code Execution | Revised 25 Sep |
| CVE-2026-69806 | .NET Elevation of Privilege Vulnerability.NET | Important | 7.0 | 1.9% | Elevation of Privilege | Revised 25 Sep |
| CVE-2026-58649 | .NET Information Disclosure Vulnerability.NET | Important | 6.5 | 0.3% | Information Disclosure | |
| CVE-2026-69304 | ASP.NET Core Denial of Service VulnerabilityASP.NET Core | Important | 5.9 | 0.9% | Denial of Service | Revised 25 Sep |