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CVE-2025-49741: Microsoft Edge Information Disclosure Vulnerability

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Overview

The vulnerability CVE-2025-49741 is a critical security flaw discovered in Microsoft Edge (Chromium-based), allowing unauthorized attackers to disclose sensitive information over a network. This vulnerability poses a significant risk to all Edge users, as it can potentially lead to system compromise or data leakage. Timely patching and adequate protective measures are essential to prevent any potential exploitation.

Vulnerability Summary

CVE ID: CVE-2025-49741
Severity: High (7.4)
Attack Vector: Network
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

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Product | Affected Versions

Microsoft Edge (Chromium-based) | All versions prior to patch

How the Exploit Works

An attacker exploiting this vulnerability would send specially crafted network requests to a target system running an unpatched version of Microsoft Edge. The vulnerability lies in the inadequate handling of such requests, which allows an attacker to bypass security measures and gain unauthorized access to sensitive information.

Conceptual Example Code

The following is a conceptual example of how this vulnerability might be exploited. It demonstrates a malicious HTTP request that an attacker might send to a vulnerable endpoint.

GET /sensitive/data HTTP/1.1
Host: target.example.com
Cookie: sessionid=...
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/58.0.3029.110 Safari/537.3

In this example, the attacker attempts to access sensitive data by sending a GET request to the target host. The server, running an unpatched version of Microsoft Edge, processes the request, potentially allowing the attacker to retrieve and disclose sensitive information.

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Disclaimer:

The information and code presented in this article are provided for educational and defensive cybersecurity purposes only. Any conceptual or pseudocode examples are simplified representations intended to raise awareness and promote secure development and system configuration practices.

Do not use this information to attempt unauthorized access or exploit vulnerabilities on systems that you do not own or have explicit permission to test.

Ameeba and its authors do not endorse or condone malicious behavior and are not responsible for misuse of the content. Always follow ethical hacking guidelines, responsible disclosure practices, and local laws.

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