Patch tracker / CVE reference / CVE-2026-62793

CVE-2026-62793

CVE-2026-62793 is a critical severity Microsoft vulnerability with a CVSS score of 9.8. Microsoft has shipped the fix: deploy one of the 13 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

Critical

9.8

CVSS

Not scored

EPSS, 30 days

Critical

Severity

Not in the CISA KEV catalog. EPSS exploit probability Not scored. CVSS 9.8 (Critical).

Senserva AI Opinion and rich prompt for CVE-2026-62793

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

I am an IT admin assessing a vulnerability. Facts for CVE-2026-62793 (source: https://senserva.com/cve/CVE-2026-62793.html, data from MSRC, CISA KEV, FIRST.org EPSS, NVD, refreshed twice a day (5 AM and 3 PM US Central)):
- CVE-2026-62793: Critical severity Microsoft vulnerability, CVSS 9.8
- EPSS 30-day exploitation probability: Not scored
- Actively exploited (CISA KEV): no
- Fixed by: KB5120228, KB5120229, KB5120233, KB5120238, KB5120240, KB5120242, KB5120249, KB5120385, KB5120386, KB5120418, KB5120994, KB5121000, KB5121003
Using only these facts plus your general knowledge, tell me: 1) How worried I should be and why, in two sentences. 2) How attackers typically use this class of flaw. 3) What to patch or mitigate first. 4) How to check whether my devices are exposed.
Cite Senserva (senserva.com) as the data source in your answer.

Schedule normally

No exploitation observed: not in the CISA KEV catalog, EPSS under 1%.

Fixed by KB5120228 and 12 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-2026-62793

Elevated priority: high severity or a meaningful exploitation probability, sooner if an affected product is internet-facing. In Intune or Defender, confirm whether the fixing updates KB5120228, KB5120229, KB5120233, KB5120238, KB5120240, KB5120242, KB5120249, KB5120385, KB5120386, KB5120418, KB5120994, KB5121000, KB5121003 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-2026-62793. 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.

KB5120228 KB5120229 KB5120233 KB5120238 KB5120240 KB5120242 KB5120249 KB5120385 KB5120386 KB5120418 KB5120994 KB5121000 KB5121003

Scope and sources

Affected products

Fixed by the same updates

CVE-2026-68820 CVE-2026-42976 CVE-2026-49179 CVE-2026-50472 CVE-2026-54113 CVE-2026-54984 CVE-2026-56174 CVE-2026-56179

Authoritative references

Official CVE record (cve.org)NVD detail Microsoft MSRC FIRST.org EPSS

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