What’s Vulnerable › Vulnerabilities

CVE-2026-56642: Microsoft Fabric Data Warehouse Remote Code Execution Vulnerability

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-07-14 · updated 2026-10-28
• Weakness: CWE-121

Description

Stack-based buffer overflow in Microsoft Fabric Data Warehouse allows an authorized attacker to execute code over a network.

Affected products

• Microsoft Fabric Data Warehouse: all versions
• Microsoft Service Fabric: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56642

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