CVE-2026-63509

Microsoft Fabric Elevation of Privilege Vulnerability

Published Aug 20, 2026 CVSS 3.1 · 9.9 Critical EPSS 1.0% KEV · Not listed
Description
Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Microsoft fabric
CPEs cpe:2.3:a:microsoft:fabric:-:*:*:*:*:*:*:*
Vendors & Products Microsoft fabric
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.
Title Microsoft Fabric Elevation of Privilege Vulnerability
First Time appeared Microsoft
Microsoft microsoft Fabric
Weaknesses CWE-23
CPEs cpe:2.3:a:microsoft:microsoft_fabric:*:*:*:*:*:*:*:*
Vendors & Products Microsoft
Microsoft microsoft Fabric
References
Metrics cvssV3_1

{'score': 9.9, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
microsoft
Published
Updated
Nov 10, 2026, 10:01 PM
Reserved
Jul 16, 2026, 10:05 PM
Status
Analyzed
Published
Aug 20, 2026, 10:17 PM
Modified
Oct 18, 2026, 8:10 PM