Patch tracker / KB5041557

KB5041557: Microsoft Dynamics 365 version 9.1 Security Update (August 2024)

KB5041557 is a High security update for Microsoft Dynamics 365 version 9.1, released 2024-08-13. It closes 1 CVE with a maximum CVSS of 8.2. It is the 22nd largest of the 49 updates Microsoft shipped that month, by CVEs closed.

Update summary

High
2024-08-13
Released
1
CVEs fixed
8.2
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 1 CVE for Microsoft Dynamics 365 version 9.1. No confirmed in-the-wild exploitation in this set today.

Fixes 1 CVE. Most severe CVSS 8.2 (High). EPSS exploit probability up to 1.0%. Among the lower 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 Dynamics 365 (on-premises) version 9.1 has shipped since this one: KB5078943 (2026-05-12). 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 KB5041557Microsoft support article
Senserva AI Opinion for KB5041557

KB5041557 fixes CVE-2024-38211 in the on-premises Dynamics 365 9.1 release, rated High severity at CVSS 8.2. That score is notably higher than the other Dynamics 365 item in this batch, so organizations running Dynamics 365 on-premises should not treat this as a low-priority ERP/CRM update despite the absence of a current CISA KEV or ransomware flag. This affects the on-premises deployment model specifically, not the cloud service.

Do this: Apply KB5041557 to on-premises Dynamics 365 9.1 servers given the 8.2 CVSS score.

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

Senserva AI Opinion and rich prompt for KB5041557

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

Full tracking and change history for KB5041557

Released
2024-08-13
Last changed
2024-08-13
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 KB5041557 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-2024-38211High8.21.0%No

Scope and sources

Affected products
Also released in August 2024

KB5041160

47 CVEs · Critical · exploited

KB5041571

44 CVEs · Critical · exploited

KB5041573

48 CVEs · Critical · exploited

KB5041578

44 CVEs · Critical · exploited

KB5041580

43 CVEs · Critical · exploited

KB5041585

43 CVEs · Critical · exploited

KB5041592

43 CVEs · Critical · exploited

KB5041773

43 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5041557 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.
Provided as is, without warranty; verify against the vendor advisory before acting. Data notice and terms.