Patch tracker / CVE reference / CVE-2026-33116
CVE-2026-33116
CVE-2026-33116 is a high severity Microsoft vulnerability with a CVSS score of 7.5. Microsoft has shipped the fix: deploy one of the 19 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.
High severity Microsoft vulnerability, CVSS 7.5. Fixed by 19 Microsoft security updates.
Risk summary
Senserva AI Opinion for CVE-2026-33116
This is a Denial of Service flaw across .NET 10.0 on Mac OS and Linux plus .NET 8.0, rated High severity at CVSS 7.5, meaning a crafted request can crash or hang affected services rather than expose data. It is not on the CISA KEV list and EPSS puts exploit probability at only 2 percent, so pressure comes from patching diligence rather than active attacks. Cross platform coverage here matters because .NET workloads on Linux and Mac often run as backend services where an outage is directly customer facing.
Do this: Inventory hosts running .NET 10.0 on Mac OS or Linux and .NET 8.0, then apply the Microsoft runtime and SDK updates and redeploy affected services.
AI-generated from public data, 2026-07-21. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2026-33116
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Updated August 7, 2026. Data refreshed on every build from MSRC, CISA KEV, and FIRST EPSS.
Full tracking and change history for CVE-2026-33116
Published and last-revised dates are authoritative, from Microsoft MSRC (or the CISA KEV date-added). Senserva additionally records day-to-day changes from 2026-07-07, refreshed several times a day; the change count reflects that forward-only tracking.
Exploitation and severity
Not in the CISA KEV catalog. EPSS exploit probability 2.3%. CVSS 7.5 (High).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
Official patch(es) for CVE-2026-33116
Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing updates KB5082398, KB5082400, KB5082402, KB5082403, KB5082411, KB5082413, KB5082414, KB5082417, KB5082418, KB5082419, KB5082420, KB5082421, KB5082424, KB5082425, KB5082426, KB5082427, KB5086095, KB5086096, KB5086097 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-2026-33116. 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.
Affected products
Fixed by the same updates
If you are patching CVE-2026-33116, the same updates also fix these:
Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.