Patch tracker / CVE reference / CVE-2026-50665
CVE-2026-50665
CVE-2026-50665 is a high severity Microsoft vulnerability with a CVSS score of 7.8. Microsoft has shipped the fix: deploy the update below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
Risk summary
Not in the CISA KEV catalog. EPSS exploit probability <1%. CVSS 7.8 (High).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
CVE-2026-50665 is an information disclosure flaw in Microsoft Office 2019 (32-bit and 64-bit) and Microsoft 365 Apps for Enterprise on 32-bit systems, rated High with a CVSS score of 7.8. Because it leaks data rather than granting code execution, the practical risk is exposure of memory contents or file data through a crafted Office document. It is not on the CISA KEV list and has no known ransomware association, so the pressure here is patch hygiene rather than active-incident response.
Do this: Deploy the current Office and Microsoft 365 Apps updates to all Office 2019 and 32-bit Microsoft 365 endpoints through your normal 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 CVE-2026-50665
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2026-50665
Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing update KB5002887 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.
Apply the Microsoft security update below to fix CVE-2026-50665. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.
Scope and sources
- Affected products
- Fixed by the same update
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.