KB5002882: Microsoft SharePoint Server 2019 Security Update (July 2026)

Download KB5002882

Get the official update for KB5002882. The download and file size for each supported product are on the Microsoft Update Catalog page.

Update summary

Senserva AI Opinion for KB5002882

KB5002882 patches 38 CVEs across SharePoint Server 2016, 2019, and Subscription Edition, topped by a Critical flaw rated CVSS 9.8 with a 57 percent EPSS score. One of these CVEs is already in the CISA KEV catalog, meaning attackers are exploiting it in the wild even though no ransomware link has been confirmed. On-premises SharePoint farms are internet-facing in many organizations, which makes the confirmed exploitation particularly urgent here.

Do this: Apply KB5002882 to all on-premises SharePoint Server 2016, 2019, and Subscription Edition farms now, prioritizing internet-facing servers because of the confirmed CISA KEV exploitation.

AI-generated from public data, 2026-07-25. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for KB5002882

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

Full tracking and change history for KB5002882

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 38 CVEs. At least one is actively exploited (CISA KEV). Most severe CVSS 9.8 (Critical). EPSS exploit probability up to 57%.

Among the top 25% of tracked Microsoft updates by EPSS exploit probability.

What to do

Treat as urgent: it is being exploited in the wild (CISA KEV), so patch ahead of items that are not. Senserva flags whether KB5002882 is missing on your devices.

Check if KB5002882 is installed

Copy-paste PowerShell: one machine, or your whole fleet 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.

Known issues, from Microsoft

Quoted from Microsoft's support article for KB5002882 (checked 2026-07-21). Verify against the article before acting.

After you run PSConfig, run the following PowerShell commands. This setting disables a defense-in-depth feature that is currently under development that may cause a regression. Existing actor token validation checks remain in place.

$farm = Get-SPFarm

$farm. DisableActorTokenAudienceValidation = $true #disables only the defense-in-depth validation

$farm.update ()

Writing about KB5002882? Cite this page

Copy-paste for a blog post, forum answer, or internal doc. The link always carries the current risk data.

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.

What the press says about this update

Trusted-source coverage of the CVEs this update fixes, pulled live from their own feeds.

Affected products

• Microsoft SharePoint Enterprise Server 2016
• Microsoft SharePoint Server 2019
• Microsoft SharePoint Server Subscription Edition

Also released in July 2026

The highest-risk updates from the same release:

The full month, summarized: Microsoft Patch Tuesday.

How to install KB5002882

Any of these paths delivers KB5002882; most organizations already have one of the first three running:

• Intune update rings (Windows Update for Business): the update flows on each ring's deferral schedule. For this update, consider an expedite policy: it bypasses deferrals for exactly this fix-now case.
• Windows Autopatch: rings, rollout, and pause or rollback are managed for you; exploited updates can be expedited.
• WSUS / Configuration Manager: approve KB5002882 for your device groups and set a deadline (deadline, not just approval, for an exploited fix).
• Manual: download from the Update Catalog above and install; fine for a handful of machines, unmanageable at any real scale.

After the rollout, verify rather than assume: update compliance reporting in Intune or Autopatch shows which devices actually installed it, and Siemserva reads Intune, Defender, Autopatch, and Azure Update Manager together to show the devices still missing KB5002882, ranked by exploitation.

Common questions about KB5002882

Does KB5002882 have known issues?

Yes. Microsoft's support article documents known issues for KB5002882 (checked 2026-07-21). The Known issues section on this page quotes it; verify against the article before acting.

Is KB5002882 urgent?

Yes. KB5002882 fixes at least one vulnerability in the CISA Known Exploited Vulnerabilities catalog, meaning attackers are using it in the wild. Deploy it first.

How do I download KB5002882?

From the Microsoft Update Catalog (linked on this page), or let Intune, Windows Update for Business, Windows Autopatch, or WSUS deliver it. The catalog page lists the download for each supported product.

How do I deploy KB5002882 with Intune?

Assign a Windows Update ring (quality update policy) to the device groups and the update flows on the ring's deferral schedule. Because KB5002882 fixes an actively exploited CVE, an Intune expedite policy is the right tool: it bypasses configured deferrals and pushes the update as soon as devices check in. Verify the rollout with update compliance reporting rather than assuming delivery.

Can I ask my own AI about KB5002882?

Yes. This page includes a free, ready-to-paste AI prompt containing KB5002882's key facts: severity, CVE count, exploitation status, and the download link. Copy it into Claude, ChatGPT, or Copilot for a rollout plan; the data is refreshed twice a day (5 AM and 3 PM US Central).

Authoritative references