Patch tracker / KB5082413
KB5082413: Microsoft .NET Framework 4.8 on Window Security Update (April 2026)
KB5082413 is a High security update for Microsoft .NET Framework 4.8 on Window, released 2026-04-14. It closes 3 CVEs with a maximum CVSS of 7.5. It is the 17th largest of the 60 updates Microsoft shipped that month, by CVEs closed.
Update summary
Fixes 3 CVEs. Most severe CVSS 7.5 (High). EPSS exploit probability up to 2.1%. Among the lower half of tracked Microsoft updates by EPSS exploit probability.
KB5082413 patches three CVEs in .NET runtimes, notably covering .NET 10.0 on Mac OS and Linux alongside .NET 8.0, so this reaches cross-platform and non-Windows deployments that admins sometimes overlook. Highest Severity is High at CVSS 7.5, but EPSS tops out at 2 percent and none of the CVEs are in CISA KEV or linked to ransomware. The cross-platform scope matters more here than urgency, since Linux and Mac build agents and containers running .NET are in the exposure path.
Do this: Inventory all .NET 8.0 and .NET 10.0 installs across Windows, Linux, and Mac OS hosts and containers, then apply KB5082413 starting with internet-facing or shared build systems.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5082413
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5082413
- Released
- 2026-04-14
- Last changed
- 2026-04-14
- Changes tracked
- 1
Senserva began recording day-to-day change history on 2026-07-07, and refreshes it several times a day. Release dates are historical where Microsoft publishes them; revision history is tracked from that date forward, so it does not include changes made before then.
Check if KB5082413 is installed
Elevated PowerShell. No output means it is not installed.
CVEs fixed by this update
Sorted exploited-first, then by CVSS. Every CVE links to its Senserva page with the full risk facts, references, and a ready-to-paste AI prompt.
| CVE | Severity | CVSS | EPSS | Exploited |
|---|---|---|---|---|
| CVE-2026-23666 | High | 7.5 | 2.1% | No |
| CVE-2026-33116 | High | 7.5 | 2.3% | No |
| CVE-2026-32226 | Medium | 5.9 | 2.1% | No |
Scope and sources
- Affected products
- Also released in April 2026
KB5082052
115 CVEs · Critical · exploitedKB5082060
121 CVEs · Critical · exploitedKB5082063
124 CVEs · Critical · exploitedKB5082123
107 CVEs · Critical · exploitedKB5082142
116 CVEs · Critical · exploitedKB5082198
87 CVEs · Critical · exploitedKB5082200
107 CVEs · Critical · exploitedKB5083768
119 CVEs · Critical · exploitedThe full month, summarized: Microsoft Patch Tuesday.
- Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.