Patch tracker / KB5002859

KB5002859: Microsoft Office 2019 for 32-bit editi Security Update (April 2026)

KB5002859 is a High security update for Microsoft Office 2019 for 32-bit editi, released 2026-04-14. It closes 1 CVE with a maximum CVSS of 8.4. It is the 48th largest of the 60 updates Microsoft shipped that month, by CVEs closed.

Update summary

High
2026-04-14
Released
1
CVEs fixed
8.4
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 8.4 (High). EPSS exploit probability up to <1%. Among the lower 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 Microsoft Office 2019 for 32-bit editions has shipped since this one: KB5002755 (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 KB5002859Microsoft support article
Senserva AI Opinion for KB5002859

KB5002859 patches a single vulnerability (CVE-2026-32190) rated High with a CVSS of 8.4 across Office 2019 and Microsoft 365 Apps for Enterprise. The exposure is broad because it spans both 32-bit and 64-bit Office installs, meaning most desktop endpoints running Office are affected. The EPSS is 0% and it is not in CISA KEV or ransomware-linked, so there is no evidence of active exploitation yet, but the high CVSS warrants prompt patching before that changes.

Do this: Push KB5002859 to all Office 2019 and Microsoft 365 Apps for Enterprise endpoints through your update channel this cycle.

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

Senserva AI Opinion and rich prompt for KB5002859

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

Full tracking and change history for KB5002859

Released
2026-04-14
Last changed
2026-04-14
Changes tracked
1

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 KB5002859 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-2026-32190High8.4<1%No

Scope and sources

Affected products
Also released in April 2026

KB5082052

115 CVEs · Critical · exploited

KB5082060

121 CVEs · Critical · exploited

KB5082063

124 CVEs · Critical · exploited

KB5082123

107 CVEs · Critical · exploited

KB5082142

116 CVEs · Critical · exploited

KB5082198

87 CVEs · Critical · exploited

KB5082200

107 CVEs · Critical · exploited

KB5083768

119 CVEs · Critical · exploited

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5002859 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.