Patch tracker / CVE reference / CVE-2026-35433

CVE-2026-35433

CVE-2026-35433 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 7.3 (High). Microsoft has shipped the fix: deploy one of the 18 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

High
7.3
CVSS v3
2.4%
EPSS, 30 days
High
Severity

Not in the CISA KEV catalog. EPSS exploit probability 2.4%. CVSS 7.3 (High).

This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.

Senserva AI Opinion for CVE-2026-35433

This is an elevation of privilege flaw in the .NET runtime itself, affecting versions 8.0, 9.0, and 10.0 on Windows, so any Windows host or server running managed .NET applications is in scope rather than a single product. Severity is High with a CVSS of 7.5, but exploit probability is low at 2 percent, it is not in CISA KEV, and there is no known ransomware use. Because three supported .NET major versions are impacted, many environments will need to patch more than one runtime.

Do this: Inventory every Windows host for installed .NET 8.0, 9.0, and 10.0 runtimes and apply the corresponding Microsoft .NET security update to each version present.

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

Senserva AI Opinion and rich prompt for CVE-2026-35433

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

Schedule normally
No exploitation observed as of 2026-10-07: not in the CISA KEV catalog, EPSS 2%.
Fixed by KB5087048 and 17 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.
Do this now: Deploy with your normal update cycle. This page refreshes daily; the verdict changes the day the data does.

Official patch(es) for CVE-2026-35433

Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing updates KB5087048, KB5087049, KB5087051, KB5087053, KB5087054, KB5087055, KB5087058, KB5087059, KB5087061, KB5087063, KB5087064, KB5087065, KB5087066, KB5087067, KB5087068, KB5093446, KB5093447, KB5093448 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.

Apply the Microsoft security updates below to fix CVE-2026-35433. 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.

KB5087048KB5087049KB5087051KB5087053KB5087054KB5087055KB5087058KB5087059KB5087061KB5087063KB5087064KB5087065KB5087066KB5087067KB5087068KB5093446KB5093447KB5093448

Scope and sources

Affected products
Fixed by the same updates
CVE-2026-32175CVE-2026-42899CVE-2026-32177
Authoritative references
Official CVE record (cve.org)NVD detailMicrosoft MSRCFIRST.org EPSS

Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See 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.
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