Vulnerability in Microsoft 365 Apps For Enterprise

CVE-2026-70125

Microsoft Outlook Remote Code Execution Vulnerability

Published 2026-09-23.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70125 (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-70125?: CVE-2026-70125 is a high-severity vulnerability in Microsoft 365 Apps For Enterprise. CVSS score: 8.8/10. Published 2026-09-23.
How severe is CVE-2026-70125?: High severity. CVSS v3 base score is 8.8 out of 10.