Patch tracker / KB5044356

KB5044356: Windows Server 2019 Security Update (October 2024)

KB5044356 is a Critical security update for Windows Server 2019, released 2024-10-08. It closes 36 CVEs with a maximum CVSS of 9.0. At least one of them is actively exploited (CISA KEV), so this is a deploy-first update. Get it from the Microsoft Update Catalog below, and see where it sits against the rest of the month on the patch tracker.

CriticalCISA KEV

Update summary

Released

2024-10-08

CVEs fixed

Max CVSS

9.0

Severity

Critical

Deploy now

This update fixes vulnerabilities confirmed exploited in the wild.

Microsoft Update Catalog: download KB5044356 Microsoft support article

A newer security update for Windows Server 2019 has shipped since this one: KB5089548 (2026-07-14). For cumulative update families the newer package includes these fixes.

New to these terms? How the Microsoft patching tools fit together, this month's Patch Tuesday summary, and every update ranked by real-world risk.

Senserva AI Opinion for KB5044356

KB5044356 adds CVE-2024-38149 to the thirty six CVEs it fixes for Windows Server 2019 and Windows Server 2022 in October 2024, alongside the recurring CVE-2024-38261, CVE-2024-43607, and CVE-2024-43608 set. Critical severity, CVSS 9.0, a 61 percent EPSS score, and CISA KEV listing confirm active exploitation among this group. This package extends coverage slightly beyond its siblings with the additional CVE-2024-38149 fix.

Do this: Install KB5044356 to capture the CVE-2024-38149 fix along with the rest of October 2024's server patches.

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

Senserva AI Opinion and rich prompt for KB5044356

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 KB5044356 (source: https://senserva.com/kb/5044356.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- Update: KB5044356, Windows Server 2019, released 2024-10-08
- Severity: Critical; fixes 36 CVEs, max CVSS 9.0
- Actively exploited (CISA KEV): YES
- CVEs include: CVE-2024-38124, CVE-2024-38149, CVE-2024-38212, CVE-2024-38261, CVE-2024-38262, CVE-2024-38265, CVE-2024-43453, CVE-2024-43456 and 28 more
- Download: https://catalog.update.microsoft.com/Search.aspx?q=KB5044356
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 KB5044356

Released

2024-10-08

Last changed

2026-07-16

Changes tracked

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.

Exploitation and severity

Fixes 36 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 9.0 (Critical). EPSS exploit probability up to 67%.

Among the top 25% of tracked Microsoft updates by EPSS exploit probability.

What to do

Treat as urgent: it is being exploited in the wild (CISA KEV), so patch ahead of items that are not. Senserva flags whether KB5044356 is missing on your devices.

Check if KB5044356 is installed

Copy-paste PowerShell: one machine, or your whole estate in one pass. No output means the update is not installed.

# Is KB5044356 installed? (elevated PowerShell)
Get-HotFix -Id KB5044356 -ErrorAction SilentlyContinue

# Across many machines (replace the names):
Invoke-Command -ComputerName SERVER01,SERVER02 {
  Get-HotFix -Id KB5044356 -ErrorAction SilentlyContinue
} | Select-Object PSComputerName, HotFixID, InstalledOn

Get-HotFix covers Windows updates. Office, SharePoint, and Exchange server updates show under installed updates in Programs and Features, or check the Update Catalog history.

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-2024-43572	Critical	9.0	67%	KEV
CVE-2024-38124	Critical	9.0	67%	No
CVE-2024-38149	Critical	9.0	67%	No
CVE-2024-38212	Critical	9.0	67%	No
CVE-2024-38261	Critical	9.0	67%	No
CVE-2024-38262	Critical	9.0	67%	No
CVE-2024-38265	Critical	9.0	67%	No
CVE-2024-43453	Critical	9.0	67%	No
CVE-2024-43456	Critical	9.0	67%	No
CVE-2024-43501	Critical	9.0	67%	No
CVE-2024-43506	Critical	9.0	67%	No
CVE-2024-43509	Critical	9.0	67%	No
CVE-2024-43515	Critical	9.0	67%	No
CVE-2024-43517	Critical	9.0	67%	No
CVE-2024-43518	Critical	9.0	67%	No
CVE-2024-43519	Critical	9.0	67%	No
CVE-2024-43520	Critical	9.0	67%	No
CVE-2024-43532	Critical	9.0	67%	No
CVE-2024-43534	Critical	9.0	67%	No
CVE-2024-43535	Critical	9.0	67%	No
CVE-2024-43541	Critical	9.0	67%	No
CVE-2024-43544	Critical	9.0	67%	No
CVE-2024-43545	Critical	9.0	67%	No
CVE-2024-43547	Critical	9.0	67%	No
CVE-2024-43549	Critical	9.0	67%	No
CVE-2024-43553	Critical	9.0	67%	No
CVE-2024-43556	Critical	9.0	67%	No
CVE-2024-43564	Critical	9.0	67%	No
CVE-2024-43570	Critical	9.0	67%	No
CVE-2024-43589	Critical	9.0	67%	No
CVE-2024-43592	Critical	9.0	67%	No
CVE-2024-43593	Critical	9.0	67%	No
CVE-2024-43599	Critical	9.0	67%	No
CVE-2024-43607	Critical	9.0	67%	No
CVE-2024-43608	Critical	9.0	67%	No
CVE-2024-43611	Critical	9.0	67%	No

Affected products

Also released in October 2024

The highest-risk updates from the same release:

KB29166583 KB5044277 KB5044281 KB5044288 KB5044293 KB5044306 KB5044320 KB5044321

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references

Official KB5044356 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.