Patch tracker / KB5082424

KB5082424: .NET Framework 4.8 Security Update (April 2026)

KB5082424 is a High security update for .NET Framework 4.8, 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.

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Update summary

High
2026-04-14
Released
3
CVEs fixed
7.5
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 3 CVEs for .NET Framework 4.8. No confirmed in-the-wild exploitation in this set today.

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.

Microsoft Update Catalog: download KB5082424Microsoft support article
Senserva AI Opinion for KB5082424

KB5082424 patches three CVEs across .NET 10.0 on macOS and Linux plus .NET 8.0, with the worst rated High severity at CVSS 7.5. The cross-platform scope is the notable part here: it covers .NET runtimes on Mac and Linux hosts, not just Windows, so your non-Windows build agents and containers are in scope. None of the three CVEs are in the CISA KEV catalog and EPSS peaks at only 2 percent, so exploitation pressure is currently low.

Do this: Inventory your Linux and macOS systems running .NET 10.0 and any .NET 8.0 hosts, then schedule the KB5082424 runtime update on those alongside your normal patch cycle.

AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for KB5082424

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for KB5082424

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 KB5082424 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.

CVESeverityCVSSEPSSExploited
CVE-2026-23666High7.51.3%No
CVE-2026-33116High7.52.1%No
CVE-2026-32226Medium5.9<1%No

Scope and sources

Affected products
Also released in April 2026

KB5082052

114 CVEs · Critical · exploited

KB5082060

120 CVEs · Critical · exploited

KB5082063

123 CVEs · Critical · exploited

KB5082123

106 CVEs · Critical · exploited

KB5082142

115 CVEs · Critical · exploited

KB5082198

86 CVEs · Critical · exploited

KB5082200

106 CVEs · Critical · exploited

KB5083768

119 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5082424 page (Microsoft Support)Microsoft Update CatalogMicrosoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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