Patch tracker / KB5086096

KB5086096: PowerShell 7.5 Security Update (April 2026)

KB5086096 is a High security update for PowerShell 7.5, released 2026-04-14. It closes 4 CVEs with a maximum CVSS of 7.5. It is the 14th largest of the 60 updates Microsoft shipped that month, by CVEs closed.

Update summary

High

2026-04-14

Released

CVEs fixed

7.5

Max CVSS v3

High

Severity

Deploy this cycle

Fixes 4 CVEs for PowerShell 7.5. No confirmed in-the-wild exploitation in this set today.

Fixes 4 CVEs. Most severe CVSS 7.5 (High). EPSS exploit probability up to 2.3%. Among the lower half of tracked Microsoft updates by EPSS exploit probability.

Microsoft Update Catalog: download KB5086096 Microsoft support article

Senserva AI Opinion for KB5086096

KB5086096 patches four CVEs across Visual Studio 2022 versions 17.12 and 17.14 plus .NET 10.0 on Windows, with the worst rated High at CVSS 7.5. Exposure is limited to developer workstations and build agents running these specific toolchains, not general end user fleets. Nothing here is in the CISA KEV catalog and EPSS tops out at 2 percent, so this is a scheduled hardening rather than an emergency.

Do this: Push KB5086096 to developer machines and CI build agents running Visual Studio 2022 17.12 or 17.14 or .NET 10.0 during your normal patch window this cycle.

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

Senserva AI Opinion and rich prompt for KB5086096

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

I am an IT admin triaging Microsoft updates. Facts for KB5086096 (source: https://senserva.com/kb/5086096.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- Update: KB5086096, PowerShell 7.5, released 2026-04-14
- Severity: High; fixes 4 CVEs, max CVSS 7.5
- Actively exploited (CISA KEV): no
- CVEs include: CVE-2026-26171, CVE-2026-32178, CVE-2026-32203, CVE-2026-33116
- Download: https://catalog.update.microsoft.com/Search.aspx?q=KB5086096
Using only these facts plus your general knowledge, tell me: 1) How urgent this update is and why, in two sentences. 2) Which systems should get it first. 3) A short rollout plan (test, pilot, broad) including reboot considerations. 4) What to verify after deployment.
Cite Senserva (senserva.com) as the data source in your answer.

Full tracking and change history for KB5086096

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 KB5086096 is installed

Elevated PowerShell. No output means it is not installed.

# Is KB5086096 installed? (elevated PowerShell)
Get-HotFix -Id KB5086096 -ErrorAction SilentlyContinue

# Across many machines (replace the names):
Invoke-Command -ComputerName SERVER01,SERVER02 {
  Get-HotFix -Id KB5086096 -ErrorAction SilentlyContinue
} | Select-Object PSComputerName, HotFixID, InstalledOn

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-2026-26171	High	7.5	2.3%	No
CVE-2026-32178	High	7.5	2.3%	No
CVE-2026-32203	High	7.5	2.3%	No
CVE-2026-33116	High	7.5	2.3%	No

Scope and sources

Affected products

Also released in April 2026

Authoritative references

Official KB5086096 page (Microsoft Support)Microsoft Update Catalog Microsoft Security Update Guide

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

KB5086096: PowerShell 7.5 Security Update (April 2026)

Update summary

Full tracking and change history for KB5086096

Check if KB5086096 is installed

CVEs fixed by this update

Scope and sources

KB5082052

KB5082060

KB5082063

KB5082123

KB5082142

KB5082198

KB5082200

KB5083768