Patch tracker / KB4475587
KB4475587: Microsoft Office 2019 for 32-bit editi Security Update (December 2024)
KB4475587 is a High security update for Microsoft Office 2019 for 32-bit editi, released 2024-12-10. It closes 2 CVEs with a maximum CVSS of 7.8. Get it from the Microsoft Update Catalog below, and see where it sits against the rest of the month on the patch tracker.
Update summary
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 KB4475587
KB4475587 fixes two Office vulnerabilities in Microsoft Office 2019 and Microsoft 365 Apps for Enterprise, both reaching High severity at CVSS 7.8. Office document handling flaws like these are typically triggered by opening a malicious file, so any user on the affected builds who opens untrusted attachments is exposed. Neither CVE is currently in CISA KEV or tied to ransomware, but document-based attacks remain a common phishing delivery method.
Do this: Deploy KB4475587 to all Office 2019 and Microsoft 365 Apps for Enterprise clients.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB4475587
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB4475587
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 2 CVEs. Most severe CVSS 7.8 (High). EPSS exploit probability up to 1.2%.
Among the lower half of tracked Microsoft updates by EPSS exploit probability.
What to do
Moderate priority: schedule it in your normal patch cycle. Senserva flags whether KB4475587 is missing on your devices.
Check if KB4475587 is installed
Copy-paste PowerShell: one machine, or your whole estate in one pass. No output means the update is not installed.
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-2024-43600 | High | 7.8 | 1.2% | No |
| CVE-2024-49059 | High | 7.8 | 1.2% | No |
Affected products
Also released in December 2024
The highest-risk updates from the same release:
The full month, summarized: Microsoft Patch Tuesday.
Authoritative references
See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.