CVE-2026-56642

Analyzed Analyzed - Analysis Complete

Microsoft Fabric Data Warehouse Stack-based Buffer Overflow

Publication date: 2026-07-14

Last updated on: 2026-07-24

Assigner: Microsoft Corporation

Description

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

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-14

Last Modified

2026-07-24

Generated

2026-08-04

AI Q&A

2026-07-15

EPSS Evaluated

2026-08-02

NVD

CVE-2026-56642

EUVD

EUVD-2026-44254

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	fabric_data_warehouse	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).

Attack-Flow Graph

Executive Summary

This is a stack-based buffer overflow vulnerability in Microsoft Fabric Data Warehouse. It allows an authorized attacker to execute arbitrary code remotely over a network by exploiting a flaw in memory handling.

Impact Analysis

An attacker could gain control of the affected system, leading to unauthorized access, data theft, or further network compromise. Since it requires authorization, attackers must first gain access to the system.

Compliance Impact

This vulnerability could lead to unauthorized data access or exfiltration, violating GDPR and HIPAA requirements for data protection and confidentiality. Organizations may face compliance penalties if exploited.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Fabric Data Warehouse to patch the stack-based buffer overflow vulnerability.

Hi! I’m here to help you understand CVE-2026-56642. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70