Patch tracker / KB5002670
KB5002670: Microsoft Office 2019 for 32-bit editi Security Update (January 2025)
KB5002670 is a High security update for Microsoft Office 2019 for 32-bit editi, released 2025-01-14. 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 KB5002670
KB5002670, from January 2025, fixes two Office vulnerabilities in Office 2019 and Microsoft 365 Apps for Enterprise, the more severe rated High at CVSS 7.8. Neither CVE-2025-21366 nor CVE-2025-21186 is currently in CISA KEV or connected to ransomware, keeping this in the standard monthly patch category. Users opening untrusted Office documents on unpatched builds remain the primary exposure path.
Do this: Include KB5002670 in the standard Office update rollout for affected builds.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for KB5002670
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Full tracking and change history for KB5002670
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 1.1%.
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 KB5002670 is missing on your devices.
Check if KB5002670 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-2025-21186 | High | 7.8 | 1.1% | No |
| CVE-2025-21366 | High | 7.8 | 1.1% | No |
Affected products
Also released in January 2025
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.