Microsoft · Security update · March 10, 2026
KB5081278: March 2026 security update
KB5081278, released March 10, 2026, fixes 2 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.
High1 publicly disclosed
CVEs closed
2
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0318
88th percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 2
Routine 0
Applies to
| Product |
|---|
| .NET 9.0 runtime installed on Linux |
| .NET 9.0 runtime installed on Mac OS |
| .NET 9.0 runtime installed on Windows |
| ASP.NET Core 9.0 |
CVEs this fix closes
| Priority | CVE | Component | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2026-26130 | ASP.NET Core | Denial of Service | 7.5 | 0.0318 | Exploitation Less Likely |
| High | CVE-2026-26127 | .NET | Denial of Service | 7.5 | 0.0227 | DisclosedExploitation Unlikely |
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