Microsoft Edge Chromium Spoofing Vulnerability

Publication date: 2026-07-03

Last updated on: 2026-07-03

Assigner: Microsoft Corporation

Description

Exposure of sensitive information to an unauthorized actor in Microsoft Edge (Chromium-based) allows an unauthorized attacker to perform spoofing 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-2026-56646

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	edge	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability in Microsoft Edge (Chromium-based) involves the exposure of sensitive information to an unauthorized actor. It allows an attacker to perform spoofing over a network, meaning the attacker can impersonate or deceive other users or systems by exploiting this information exposure.

Impact Analysis

The impact of this vulnerability is that an unauthorized attacker could gain access to sensitive information and use it to spoof or impersonate legitimate users or systems over a network. This could lead to unauthorized access, deception, or manipulation of communications, potentially compromising security and privacy.

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