Patch tracker / KB5044030

KB5044030: .NET Framework 3.5 and 4.8.1 Security Update (October 2024)

KB5044030 is a High security update for .NET Framework 3.5 and 4.8.1, released 2024-10-08. It closes 2 CVEs with a maximum CVSS of 7.5. The most likely of them to be attacked is CVE-2024-43483, which FIRST.org rates at 67% probability of exploitation in the next 30 days.

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Update summary

High
2024-10-08
Released
2
CVEs fixed
7.5
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 2 CVEs for .NET Framework 3.5 and 4.8.1. No confirmed in-the-wild exploitation in this set today.

Fixes 2 CVEs. Most severe CVSS 7.5 (High). EPSS exploit probability up to 3.0%. Among the top half of tracked Microsoft updates by EPSS exploit probability.

Senserva found thiswe track every release for this product line, so we can tell you this package is behind

A newer security update for Microsoft .NET Framework 3.5 AND 4.8.1 on Windows 11 Version 24H2 for ARM64-based Systems has shipped since this one: KB5120710 (2026-08-11). For cumulative update families the newer package includes these fixes, so installing that one is usually the shorter path. Verify against your own update rings before you skip this package.

Microsoft Update Catalog: download KB5044030Microsoft support article
Senserva AI Opinion for KB5044030

KB5044030 is the last of this batch's PowerShell/Visual Studio 2022 17.6 packages fixing CVE-2024-43483 and CVE-2024-43484, High at CVSS 7.5. Once every build across the fleet has one of these near-identical October 2024 KBs, this fix pair can be considered fully remediated. EPSS remains 3 percent with no KEV or ransomware linkage.

Do this: Close out the October 2024 PowerShell/Visual Studio remediation by confirming KB5044030 or its final sibling is applied.

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

Senserva AI Opinion and rich prompt for KB5044030

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

Full tracking and change history for KB5044030

Released
2024-10-08
Last changed
2026-09-26
Changes tracked
2

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 KB5044030 is installed

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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-2024-43483High7.567%No
CVE-2024-43484High7.567%No

Scope and sources

Affected products
Also released in October 2024

KB29166583

1 CVE · Critical · exploited

KB5044277

77 CVEs · Critical · exploited

KB5044281

65 CVEs · Critical · exploited

KB5044288

83 CVEs · Critical · exploited

KB5044293

56 CVEs · Critical · exploited

KB5044306

32 CVEs · Critical · exploited

KB5044320

32 CVEs · Critical · exploited

KB5044321

36 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5044030 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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