Patch tracker / CVE reference / CVE-2026-44805
CVE-2026-44805
CVE-2026-44805 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 5.5 (Medium). Microsoft has shipped the fix: deploy one of the 3 updates 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 2.3%. CVSS 5.5 (Medium).
This CVE is among the lower half of tracked Microsoft CVEs by EPSS exploit probability.
The Network Controller Host Agent runs in software-defined networking deployments, and a denial-of-service flaw here spans Windows Server 2019 and 2022 at CVSS 9.8 and 48 percent EPSS. Crashing the NC host agent can disrupt SDN control and, by extension, connectivity for workloads that depend on it. Datacenters using Windows SDN are the specific exposure.
Do this: Patch Network Controller and SDN host servers on Windows Server 2019 and 2022, coordinating with your virtualization networking team.
AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.
Senserva AI Opinion and rich prompt for CVE-2026-44805
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Official patch(es) for CVE-2026-44805
Lower priority: patch in your normal cycle. In Intune or Defender, confirm whether the fixing updates KB5094123, KB5094125, KB5094128 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-2026-44805. 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 updates
- Authoritative references
Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.