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Vulnerability record · CVE-2026-63509 · published 20 August 2026

CVE-2026-63509: Microsoft fabric relative path traversal vulnerability

Microsoft · Fabric

Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.

8.8 CVSS 3.1 High EPSS 1.0% · top 37.9% CWE-23 · Relative path traversal
8.8CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
4 Sep 2026Last modified by NVD

Description

Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63509 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-63509), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.