Patch tracker / CVE reference / CVE-2026-33096

CVE-2026-33096

CVE-2026-33096 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 7.5 (High). Microsoft has shipped the fix: deploy one of the 6 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Our data comes from Microsoft, CISA and other public sources, and it can be wrong or out of date. If you are unsure, check the linked source before you act, and tell us when we are wrong so we can fix it.

Risk summary

High
7.5
CVSS v3
3.5%
EPSS, 30 days
High
Severity

Not in the CISA KEV catalog. EPSS exploit probability 3.5%. CVSS 7.5 (High).

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

Senserva AI Opinion for CVE-2026-33096

CVE-2026-33096 is a network-facing HTTP.sys denial of service flaw carrying a Critical rating with CVSS 9.8, which is unusually high for a DoS since the kernel-level HTTP driver underpins IIS and many Windows services. Exposed systems are Windows 11 version 26H1 on ARM64 and x64 plus Windows Server 2022, and any of these acting as a web or HTTP endpoint can be knocked offline remotely. It is not in CISA KEV or tied to ransomware yet, but the 64 percent EPSS score signals attackers are likely to weaponize it soon.

Do this: Deploy Microsoft's patch to Windows Server 2022 and Windows 11 26H1 systems that host HTTP.sys workloads first, prioritizing internet-facing web servers.

AI-generated from public data, 2026-07-26. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2026-33096

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

Schedule normally
No exploitation observed as of 2026-10-19: not in the CISA KEV catalog, EPSS 4%.
Fixed by KB5082052 and 5 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-2026-33096

Moderate priority: schedule it in your normal patch cycle. In Intune or Defender, confirm whether the fixing updates KB5082052, KB5082060, KB5082063, KB5082142, KB5083768, KB5083769 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-2026-33096. 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.

KB5082052KB5082060KB5082063KB5082142KB5083768KB5083769

Scope and sources

Affected products
Fixed by the same updates
CVE-2026-33824CVE-2026-26167CVE-2026-26178CVE-2026-32157CVE-2026-32225CVE-2026-27928CVE-2026-32091CVE-2026-32162
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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