CVE-2026-63509 json
Microsoft Fabric Elevation of Privilege Vulnerability
published 2026-08-20 2 mo ago modified 2026-10-30 9 d ago also EUVD-2026-63620
- cvss
- 9.9
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.0%
- EPSS 1.0% chance of exploitation in 30 days, percentile 63%
- public exploits
- 0
- none known
Summary
Relative path traversal in Microsoft Fabric allows an authorized attacker to elevate privileges over a network.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 2 mo ago
Exploit prediction
1.02% chance of exploitation in the next 30 days, higher than 63% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 9.9 | 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 |
| CNA | 3.1 | 9.9 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Microsoft Microsoft Fabric
Classification
- Weakness
-
- CWE-23 Relative Path Traversal
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2026-63509
vendor-advisory, patch
Sources
- CVE List CVE-2026-63509
- NVD CVE-2026-63509
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