CVE-2026-66800

Microsoft — Azure Data Factory Information Disclosure Vulnerability

Patch Tuesday

What EVULNABLE says

EVULNABLE Risk · priority 11/100 Elevated Intelligence coverage 80/100 — no Microsoft Exploitability Index, no ransomware association data, no CISA KEV listing date
Patch Tuesday

Why it matters: CVSS base score 8.6, and an EPSS probability of 0.005.

Scheduled Maintenance

The priority band answers “how soon”, not “how bad” — see Methodology for what it weighs and where it abstains.

The evidence behind it

Published measurements for CVE-2026-66800
MeasureValueSource
CVSS base score 8.6
FIRST EPSS 0.005 (43.3rd pctl) FIRST
Actively exploited Not confirmed Patch Tuesday
Intelligence coverage 80/100 — no Microsoft Exploitability Index, no ransomware association data, no CISA KEV listing date

This page is an opinion about urgency. Where it and a source of record disagree, the source of record is the record.