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9.9
CVE-2026-63509: Microsoft Fabric can let attackers gain higher access
CVE-2026-63509 · published 14 days ago
Summary
Microsoft Fabric may allow a person who already has some access to move to a higher level of control across your network. This could let the attacker view or change sensitive information. Install the latest updates from Microsoft and review your access controls to limit what each user can do.
What to do
The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.
Affected software
| Vendor | Product | Affected versions |
|---|---|---|
| microsoft | microsoft fabric | - |
Original advisory text
Microsoft Fabric Elevation of Privilege Vulnerability
Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63509 vendor-advisory patch
Severity
9.9
Critical
CVSS 3.1: 9.9 (MITRE)
Exploitation
EPSS <1%
Type
CWE-23Relative Path Traversal
Timeline
Published20 Aug 2026
Updated3 Sep 2026
First seen20 Aug 2026
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