Microsoft Fabric is a broadly used enterprise cloud analytics platform; network privilege escalation (CVSS 8.5) can lead to admin compromise and wide impact.
CVE-2026-70178
Missing authorization in Microsoft Fabric allows network privilege escalation.
Is CVE-2026-70178 being exploited?
Not confirmed. CVE-2026-70178 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.43% probability of exploitation in the next 30 days.
How severe is CVE-2026-70178?
CVE-2026-70178 is rated High. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-70178?
Yes. A fix has been recorded for CVE-2026-70178. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-70178 affect?
CVE-2026-70178 affects Microsoft Fabric. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-70178?
Apply Microsoft security update, restrict Fabric network access, and monitor logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated attacker can bypass authorization remotely to elevate privileges and obtain administrative access to Microsoft Fabric services.
Immediate action required