Type Confusion in Microsoft Edge (Chromium-based)

Publication date: 2026-07-03

Last updated on: 2026-07-03

Assigner: Microsoft Corporation

Description

Access of resource using incompatible type ('type confusion') in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-07-03

Last Modified

2026-07-03

Generated

2026-07-04

AI Q&A

2026-07-04

EPSS Evaluated

N/A

NVD

CVE-2026-58290

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	edge	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-843	The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.

Attack-Flow Graph

Executive Summary

This vulnerability is a type confusion issue in Microsoft Edge (Chromium-based) that allows an unauthorized attacker to execute code remotely over a network.

Impact Analysis

An attacker exploiting this vulnerability could execute code on your system remotely, potentially leading to unauthorized actions, data compromise, or system instability.

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