Patch tracker / KB5082806

KB5082806: Windows 10 Version 1809 for 32-bit Sys Security Update (April 2026)

KB5082806 is a High security update for Windows 10 Version 1809 for 32-bit Sys, released 2026-04-14. It closes 1 CVE with a maximum CVSS of 7.8. The most likely of them to be attacked is CVE-2026-32077, which FIRST.org rates at 56% probability of exploitation in the next 30 days.

Update summary

High
2026-04-14
Released
1
CVEs fixed
7.8
Max CVSS
High
Severity
Deploy this cycle
Fixes 1 CVE for Windows 10 Version 1809 for 32-bit Sys. No confirmed in-the-wild exploitation in this set today.

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

Microsoft Update Catalog: download KB5082806Microsoft support article
Senserva AI Opinion for KB5082806

KB5082806 patches a single flaw, CVE-2026-32077, rated High with CVSS 7.8, spanning an unusually wide range: the new Windows 11 26H1 on both ARM64 and x64 plus the older Windows 10 1809 on 32-bit systems. That mix means both cutting edge and legacy fleets are exposed by the same update. EPSS is 0 percent and it is not in CISA KEV or ransomware-linked, so there is no sign of active exploitation yet.

Do this: Deploy KB5082806 across your 26H1 and remaining 1809 32-bit endpoints on the normal patch cycle, prioritizing whichever of those populations is largest in your environment.

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

Senserva AI Opinion and rich prompt for KB5082806

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

Full tracking and change history for KB5082806

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 KB5082806 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-2026-32077Critical9.856%No

Scope and sources

Affected products
Also released in April 2026

KB5002853

2 CVEs · Medium · exploited

KB5002854

2 CVEs · Medium · exploited

KB5002861

2 CVEs · Medium · exploited

KB5082052

115 CVEs · Critical

KB5082060

121 CVEs · Critical

KB5082063

124 CVEs · Critical

KB5082123

107 CVEs · Critical

KB5082142

116 CVEs · Critical

The full month, summarized: Microsoft Patch Tuesday.

Authoritative references
Official KB5082806 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.