Patch tracker / KB5058387

KB5058387: Windows Server 2019 Security Update (August 2025)

KB5058387 is a High security update for Windows Server 2019, released 2025-08-12. It closes 33 CVEs with a maximum CVSS of 8.8. 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-2025-55229, which FIRST.org rates at 61% probability of exploitation in the next 30 days.

Update summary

HighCISA KEV

2025-08-12

Released

CVEs fixed

8.8

Max CVSS

High

Severity

Deploy now

This update fixes vulnerabilities confirmed exploited in the wild.

Fixes 33 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 8.8 (High). EPSS exploit probability up to 21%. 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 Windows 10 Version 1809 for 32-bit Systems has shipped since this one: KB5094041 (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 KB5058387 Microsoft support article

Senserva AI Opinion for KB5058387

KB5058387 is the August 12, 2025 rollup for Windows 10 version 1809 and Windows Server 2019, fixing 33 CVEs with a highest Severity of High (CVSS 8.8). At least one CVE is listed in the CISA Known Exploited Vulnerabilities catalog, so it is confirmed exploited in the wild even though none are tied to ransomware campaigns yet. The highest EPSS is 21 percent, indicating meaningful near-term exploitation likelihood for the top item.

Do this: Prioritize this rollup on your 1809 and Server 2019 fleet because it clears an actively exploited KEV-listed flaw, and schedule deployment ahead of your normal patch window.

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

Senserva AI Opinion and rich prompt for KB5058387

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 KB5058387 (source: https://senserva.com/kb/5058387.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- Update: KB5058387, Windows Server 2019, released 2025-08-12
- Severity: High; fixes 33 CVEs, max CVSS 8.8
- Actively exploited (CISA KEV): YES
- CVEs include: CVE-2025-24063, CVE-2025-27468, CVE-2025-29829, CVE-2025-29830, CVE-2025-29832, CVE-2025-29833, CVE-2025-29835, CVE-2025-29836 and 25 more
- Download: https://catalog.update.microsoft.com/Search.aspx?q=KB5058387
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 KB5058387

Released: 2025-08-12
Last changed: 2026-07-13
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 KB5058387 is installed

Elevated PowerShell. No output means it is not installed.

# Is KB5058387 installed? (elevated PowerShell)
Get-HotFix -Id KB5058387 -ErrorAction SilentlyContinue

# Across many machines (replace the names):
Invoke-Command -ComputerName SERVER01,SERVER02 {
  Get-HotFix -Id KB5058387 -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-2025-32701	High	7.8	61%	KEV
CVE-2025-32706	High	7.8	61%	KEV
CVE-2025-32709	High	7.8	61%	KEV
CVE-2025-30397	High	7.5	61%	KEV
CVE-2025-29839	High	8.8	61%	No
CVE-2025-29840	High	8.8	61%	No
CVE-2025-29962	High	8.8	61%	No
CVE-2025-29966	High	8.8	61%	No
CVE-2025-29967	High	8.8	61%	No
CVE-2025-24063	High	7.8	61%	No
CVE-2025-30385	High	7.8	61%	No
CVE-2025-30388	High	7.8	61%	No
CVE-2025-32707	High	7.8	24%	No
CVE-2025-47955	High	7.8	61%	No
CVE-2025-29833	High	7.7	61%	No
CVE-2025-29842	High	7.5	61%	No
CVE-2025-29969	High	7.5	61%	No
CVE-2025-27468	High	7.0	61%	No
CVE-2025-29830	Medium	6.5	61%	No
CVE-2025-29832	Medium	6.5	61%	No
CVE-2025-29835	Medium	6.5	61%	No
CVE-2025-29836	Medium	6.5	61%	No
CVE-2025-29958	Medium	6.5	61%	No
CVE-2025-29959	Medium	6.5	61%	No
CVE-2025-29960	Medium	6.5	61%	No
CVE-2025-29961	Medium	6.5	61%	No
CVE-2025-29957	Medium	6.2	61%	No
CVE-2025-29954	Medium	5.9	61%	No
CVE-2025-29974	Medium	5.7	61%	No
CVE-2025-29829	Medium	5.5	61%	No
CVE-2025-29837	Medium	5.5	61%	No
CVE-2025-29956	Medium	5.4	61%	No
CVE-2025-55229	Medium	5.3	61%	No

Scope and sources

Affected products

Also released in August 2025

Authoritative references

Official KB5058387 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.

KB5058387: Windows Server 2019 Security Update (August 2025)

Update summary

Full tracking and change history for KB5058387

Check if KB5058387 is installed

CVEs fixed by this update

Scope and sources

KB5058379

KB5058383

KB5058384

KB5058385

KB5058392

KB5058405

KB5058411

KB5058500