Patch tracker / KB5062557

KB5062557: Windows Server 2019 Security Update (August 2025)

KB5062557 is a Critical security update for Windows Server 2019, released 2025-08-12. It closes 94 CVEs with a maximum CVSS of 9.8. Get it from the Microsoft Update Catalog below, and see where it sits against the rest of the month on the patch tracker.

Critical

Update summary

Released

2025-08-12

CVEs fixed

Max CVSS

9.8

Severity

Critical

Deploy this cycle

Fixes 94 CVEs for Windows Server 2019. No confirmed in-the-wild exploitation in this set today.

Microsoft Update Catalog: download KB5062557 Microsoft support article

A newer security update for Windows 10 Version 1809 for 32-bit Systems 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 KB5062557

KB5062557 is the August 12, 2025 rollup for Windows 10 Version 1809 and Windows Server 2019, closing 95 CVEs including one rated Critical at CVSS 9.8. Exposure spans both client and server 2019 fleets, and the highest EPSS of 22% signals meaningful near-term exploitation probability even though none of these CVEs are in CISA KEV or tied to ransomware yet. The unusual factor here is the sheer CVE count on a legacy 1809 servicing branch, meaning organizations still running older Server 2019 workloads carry the full patch burden.

Do this: Deploy KB5062557 to all Windows 10 1809 and Server 2019 systems now, prioritizing internet-facing Server 2019 hosts given the CVSS 9.8 Critical fix.

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

Senserva AI Opinion and rich prompt for KB5062557

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 KB5062557 (source: https://senserva.com/kb/5062557.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- Update: KB5062557, Windows Server 2019, released 2025-08-12
- Severity: Critical; fixes 94 CVEs, max CVSS 9.8
- Actively exploited (CISA KEV): no
- CVEs include: CVE-2024-36350, CVE-2024-36357, CVE-2025-47159, CVE-2025-47971, CVE-2025-47972, CVE-2025-47973, CVE-2025-47975, CVE-2025-47976 and 86 more
- Download: https://catalog.update.microsoft.com/Search.aspx?q=KB5062557
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 KB5062557

Released

2025-08-12

Last changed

2026-08-07

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 94 CVEs. Most severe CVSS 9.8 (Critical). EPSS exploit probability up to 25%.

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

What to do

Elevated priority: high severity or a meaningful exploitation probability, sooner if an affected product is internet-facing. Senserva flags whether KB5062557 is missing on your devices.

Check if KB5062557 is installed

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

# Is KB5062557 installed? (elevated PowerShell)
Get-HotFix -Id KB5062557 -ErrorAction SilentlyContinue

# Across many machines (replace the names):
Invoke-Command -ComputerName SERVER01,SERVER02 {
  Get-HotFix -Id KB5062557 -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-2024-36350	Critical	9.8	25%	No
CVE-2024-36357	Critical	9.8	25%	No
CVE-2025-47159	Critical	9.8	25%	No
CVE-2025-47971	Critical	9.8	25%	No
CVE-2025-47972	Critical	9.8	25%	No
CVE-2025-47973	Critical	9.8	25%	No
CVE-2025-47975	Critical	9.8	25%	No
CVE-2025-47976	Critical	9.8	25%	No
CVE-2025-47980	Critical	9.8	25%	No
CVE-2025-47981	Critical	9.8	25%	No
CVE-2025-47982	Critical	9.8	25%	No
CVE-2025-47984	Critical	9.8	25%	No
CVE-2025-47985	Critical	9.8	25%	No
CVE-2025-47986	Critical	9.8	25%	No
CVE-2025-47987	Critical	9.8	25%	No
CVE-2025-47991	Critical	9.8	25%	No
CVE-2025-47996	Critical	9.8	25%	No
CVE-2025-47998	Critical	9.8	25%	No
CVE-2025-47999	Critical	9.8	25%	No
CVE-2025-48000	Critical	9.8	25%	No
CVE-2025-48001	Critical	9.8	25%	No
CVE-2025-48003	Critical	9.8	25%	No
CVE-2025-48799	Critical	9.8	25%	No
CVE-2025-48800	Critical	9.8	25%	No
CVE-2025-48803	Critical	9.8	25%	No
CVE-2025-48804	Critical	9.8	25%	No
CVE-2025-48805	Critical	9.8	25%	No
CVE-2025-48806	Critical	9.8	25%	No
CVE-2025-48808	Critical	9.8	25%	No
CVE-2025-48811	Critical	9.8	25%	No
CVE-2025-48814	Critical	9.8	25%	No
CVE-2025-48815	Critical	9.8	25%	No
CVE-2025-48816	Critical	9.8	25%	No
CVE-2025-48817	Critical	9.8	25%	No
CVE-2025-48818	Critical	9.8	25%	No
CVE-2025-48819	Critical	9.8	25%	No
CVE-2025-48820	Critical	9.8	25%	No
CVE-2025-48821	Critical	9.8	25%	No
CVE-2025-48822	Critical	9.8	25%	No
CVE-2025-48823	Critical	9.8	25%	No
CVE-2025-48824	Critical	9.8	25%	No
CVE-2025-49657	Critical	9.8	25%	No
CVE-2025-49658	Critical	9.8	25%	No
CVE-2025-49659	Critical	9.8	25%	No
CVE-2025-49660	Critical	9.8	25%	No
CVE-2025-49661	Critical	9.8	25%	No
CVE-2025-49663	Critical	9.8	25%	No
CVE-2025-49664	Critical	9.8	25%	No
CVE-2025-49665	Critical	9.8	25%	No
CVE-2025-49666	Critical	9.8	25%	No
CVE-2025-49667	Critical	9.8	25%	No
CVE-2025-49668	Critical	9.8	25%	No
CVE-2025-49669	Critical	9.8	25%	No
CVE-2025-49670	Critical	9.8	25%	No
CVE-2025-49671	Critical	9.8	25%	No
CVE-2025-49672	Critical	9.8	25%	No
CVE-2025-49673	Critical	9.8	25%	No
CVE-2025-49674	Critical	9.8	25%	No
CVE-2025-49675	Critical	9.8	25%	No
CVE-2025-49676	Critical	9.8	25%	No
CVE-2025-49678	Critical	9.8	25%	No
CVE-2025-49679	Critical	9.8	25%	No
CVE-2025-49680	Critical	9.8	25%	No
CVE-2025-49681	Critical	9.8	25%	No
CVE-2025-49683	Critical	9.8	25%	No
CVE-2025-49684	Critical	9.8	25%	No
CVE-2025-49685	Critical	9.8	25%	No
CVE-2025-49686	Critical	9.8	25%	No
CVE-2025-49687	Critical	9.8	25%	No
CVE-2025-49688	Critical	9.8	25%	No
CVE-2025-49689	Critical	9.8	25%	No
CVE-2025-49690	Critical	9.8	25%	No
CVE-2025-49691	Critical	9.8	25%	No
CVE-2025-49716	Critical	9.8	25%	No
CVE-2025-49721	Critical	9.8	25%	No
CVE-2025-49722	Critical	9.8	25%	No
CVE-2025-49723	Critical	9.8	25%	No
CVE-2025-49724	Critical	9.8	25%	No
CVE-2025-49725	Critical	9.8	25%	No
CVE-2025-49726	Critical	9.8	25%	No
CVE-2025-49727	Critical	9.8	25%	No
CVE-2025-49729	Critical	9.8	25%	No
CVE-2025-49730	Critical	9.8	25%	No
CVE-2025-49732	Critical	9.8	25%	No
CVE-2025-49733	Critical	9.8	25%	No
CVE-2025-49740	Critical	9.8	25%	No
CVE-2025-49742	Critical	9.8	25%	No
CVE-2025-49744	Critical	9.8	25%	No
CVE-2025-49753	Critical	9.8	25%	No
CVE-2025-49757	Critical	9.8	25%	No
CVE-2025-49760	Critical	9.8	25%	No
CVE-2025-53789	Critical	9.8	25%	No
CVE-2025-55230	Critical	9.8	25%	No
CVE-2025-55231	Critical	9.8	25%	No

Affected products

Also released in August 2025

The highest-risk updates from the same release:

KB5058379 KB5058383 KB5058384 KB5058385 KB5058387 KB5058392 KB5058405 KB5058411

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references

Official KB5062557 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.