CVE-2026-66323
Received Received - Intake

Microsoft Edge Chromium-Based Code Execution Vulnerability

Publication date: 2026-08-28

Last updated on: 2026-08-28

Assigner: Microsoft Corporation

Description
Improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based) allows an unauthorized attacker to execute code over a network.

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Meta Information

Published
2026-08-28
Last Modified
2026-08-28
Generated
2026-08-29
AI Q&A
2026-08-29
EPSS Evaluated
N/A
NVD
CVE-2026-66323
EUVD
EUVD-2026-67849

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
microsoft edge *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-141 The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as parameter or argument delimiters when they are sent to a downstream component.

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Executive Summary

This vulnerability involves improper neutralization of parameter/argument delimiters in Microsoft Edge (Chromium-based). It allows an unauthorized attacker to execute code remotely over a network.

Impact Analysis

An attacker could exploit this to run malicious code on your system through Microsoft Edge, potentially leading to data theft, system compromise, or further network attacks.

Mitigation Strategies

Apply the latest security updates from Microsoft for Microsoft Edge (Chromium-based) to address the improper neutralization of parameter/argument delimiters.

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