Patch tracker / KB5041838

KB5041838: Windows Server 2008 R2 Security Update (August 2024)

KB5041838 is a Critical security update for Windows Server 2008 R2, released 2024-08-13. It closes 29 CVEs with a maximum CVSS of 9.8. At least one of them is actively exploited (CISA KEV), so this is a deploy-first update. The most likely of them to be attacked is CVE-2024-38193, which FIRST.org rates at 71% probability of exploitation in the next 30 days.

Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.

Update summary

CriticalCISA KEV

2024-08-13

Released

CVEs fixed

9.8

Max CVSS v3

Critical

Severity

Deploy now

This update fixes vulnerabilities confirmed exploited in the wild.

Fixes 29 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 9.8 (Critical). EPSS exploit probability up to 71%. Among the top 10% 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 Windows Server 2008 R2 for x64-based Systems Service Pack 1 has shipped since this one: KB5073695 (2026-01-13). 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 KB5041838 Microsoft support article

Senserva AI Opinion for KB5041838

KB5041838 is a close variant of the twenty eight CVE August 2024 packages, fixing twenty nine CVEs for Windows 11 version 24H2 and Windows 10 1809 with the same CVE-2024-38178, CVE-2024-38193, CVE-2024-38118, and CVE-2024-38121 core. Critical severity, CVSS 9.8, a 71 percent EPSS score, and CISA KEV listing are unchanged from its siblings, so it addresses the same live exploitation risk. The one CVE difference from its siblings is a minor servicing detail, not a meaningfully different risk profile.

Do this: Deploy KB5041838 to Windows 11 24H2 and Windows 10 1809 systems as part of the August 2024 update wave.

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

Senserva AI Opinion and rich prompt for KB5041838

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

I am an IT admin triaging Microsoft updates. Facts for KB5041838 (source: https://senserva.com/kb/5041838.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed daily (early morning US Central)):
- Update: KB5041838, Windows Server 2008 R2, released 2024-08-13
- Severity: Critical; fixes 29 CVEs, max CVSS 9.8
- Actively exploited (CISA KEV): YES
- CVEs include: CVE-2024-29995, CVE-2024-37968, CVE-2024-38063, CVE-2024-38114, CVE-2024-38115, CVE-2024-38116, CVE-2024-38117, CVE-2024-38118 and 21 more
- Download: https://catalog.update.microsoft.com/Search.aspx?q=KB5041838
Using only these facts plus your general knowledge, tell me: 1) How urgent this update is and why, in two sentences. 2) Which systems should get it first. 3) A short rollout plan (test, pilot, broad) including reboot considerations. 4) What to verify after deployment.
Cite Senserva (senserva.com) as the data source in your answer.

Full tracking and change history for KB5041838

Released: 2024-08-13
Last changed: 2026-09-29
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 KB5041838 is installed

Elevated PowerShell. No output means it is not installed.

# Is KB5041838 installed? (elevated PowerShell)
Get-HotFix -Id KB5041838 -ErrorAction SilentlyContinue

# Across many machines (replace the names):
Invoke-Command -ComputerName SERVER01,SERVER02 {
  Get-HotFix -Id KB5041838 -ErrorAction SilentlyContinue
} | Select-Object PSComputerName, HotFixID, InstalledOn

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-2024-38193	High	9.8	71%	KEV
CVE-2024-38063	Critical	9.8	71%	No
CVE-2024-38118	Critical	9.8	71%	No
CVE-2024-38122	Critical	9.8	71%	No
CVE-2024-38140	Critical	9.8	71%	No
CVE-2024-38151	Critical	9.8	71%	No
CVE-2024-38199	Critical	9.8	71%	No
CVE-2024-38214	Critical	9.8	71%	No
CVE-2024-38114	High	8.8	71%	No
CVE-2024-38115	High	8.8	71%	No
CVE-2024-38116	High	8.8	71%	No
CVE-2024-38120	High	8.8	71%	No
CVE-2024-38121	High	8.8	71%	No
CVE-2024-38128	High	8.8	71%	No
CVE-2024-38130	High	8.8	71%	No
CVE-2024-38131	High	8.8	71%	No
CVE-2024-38144	High	8.8	71%	No
CVE-2024-38154	High	8.8	71%	No
CVE-2024-38180	High	8.8	71%	No
CVE-2024-29995	High	8.1	71%	No
CVE-2024-38117	High	7.8	71%	No
CVE-2024-38125	High	7.8	71%	No
CVE-2024-38127	High	7.8	71%	No
CVE-2024-38134	High	7.8	71%	No
CVE-2024-38152	High	7.8	71%	No
CVE-2024-38153	High	7.8	71%	No
CVE-2024-38196	High	7.8	71%	No
CVE-2024-37968	High	7.5	71%	No
CVE-2024-38198	High	7.5	71%	No

Scope and sources

Affected products

Also released in August 2024

Authoritative references

Official KB5041838 page (Microsoft Support)Microsoft Update Catalog Microsoft Security Update Guide

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

KB5041838: Windows Server 2008 R2 Security Update (August 2024)

Update summary

Full tracking and change history for KB5041838

Check if KB5041838 is installed

CVEs fixed by this update

Scope and sources

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