Patch tracker / KB5002643

KB5002643: Microsoft Office 2019 for 32-bit editi Security Update (October 2024)

KB5002643 is a High security update for Microsoft Office 2019 for 32-bit editi, released 2024-10-08. It closes 1 CVE with a maximum CVSS of 7.8. The most likely of them to be attacked is CVE-2024-43504, which FIRST.org rates at 7% probability of exploitation in the next 30 days.

Update summary

High
2024-10-08
Released
1
CVEs fixed
7.8
Max CVSS v3
High
Severity
Deploy this cycle
Fixes 1 CVE for Microsoft Office 2019 for 32-bit editi. No confirmed in-the-wild exploitation in this set today.

Fixes 1 CVE. Most severe CVSS 7.8 (High). EPSS exploit probability up to 6.5%. Among the top half of tracked Microsoft updates by EPSS exploit probability.

Microsoft Update Catalog: download KB5002643Microsoft support article
Senserva AI Opinion for KB5002643

This Office update fixes CVE-2024-43504, a High Severity, CVSS 7.8 issue, across Office LTSC 2024 and Office 2019 32-bit editions. A 6 percent EPSS score is modest but not negligible for client-side Office software that regularly opens files from outside the organization. No KEV or ransomware link is recorded for this CVE.

Do this: Push KB5002643 to Office LTSC 2024 and Office 2019 installs in the next update cycle.

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

Senserva AI Opinion and rich prompt for KB5002643

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Full tracking and change history for KB5002643

Released
2024-10-08
Last changed
2026-08-21
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 KB5002643 is installed

Elevated PowerShell. No output means it is not installed.

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.

CVESeverityCVSSEPSSExploited
CVE-2024-43504High7.86.5%No

Scope and sources

Affected products
Also released in October 2024

KB29166583

1 CVE · Critical · exploited

KB5044277

77 CVEs · Critical · exploited

KB5044281

65 CVEs · Critical · exploited

KB5044288

83 CVEs · Critical · exploited

KB5044293

56 CVEs · Critical · exploited

KB5044306

32 CVEs · Critical · exploited

KB5044320

32 CVEs · Critical · exploited

KB5044321

36 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5002643 page (Microsoft Support)Microsoft Update CatalogMicrosoft Security Update Guide

See this and every Microsoft update ranked by real-world risk on the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
Provided as is, without warranty; verify against the vendor advisory before acting. Data notice and terms.