# CVE-2026-63509

## Summary

- **CVE ID:** CVE-2026-63509
- **Severity:** CRITICAL
- **CVSS Score:** 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)
- **CWE:** CWE-23
- **Published:** Aug 20, 2026
- **Last Modified:** Sep 16, 2026

## Description

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

## Affected Products

- Microsoft — Microsoft Fabric (-)

## References

- [CNA](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-63509)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.62%
- **EPSS Percentile:** 48.2

---
_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-18._