CVE-2025-58485: Samsung Internet Under Attack – Script Injection Vulnerability

Overview

CVE-2025-58485 is a medium severity vulnerability affecting Samsung Internet browser versions prior to 29.0.0.48. This vulnerability allows a local attacker to inject arbitrary scripts due to improper input validation. This can potentially lead to unauthorized actions performed within the context of the browser.

Technical Details

The root cause of CVE-2025-58485 lies in the insufficient validation of user-supplied input within Samsung Internet. Specifically, certain input fields or parameters processed by the browser lack adequate sanitization. This oversight enables an attacker, with local access to the device, to inject malicious scripts into the browser’s environment. These scripts could then be executed, potentially compromising user data or altering the browser’s behavior. The specific attack vector involves manipulating the input provided to the browser in such a way that it is interpreted as executable code.

CVSS Analysis

The Common Vulnerability Scoring System (CVSS) assigns a score of 5.5 (MEDIUM) to CVE-2025-58485. This score reflects the fact that the vulnerability requires local access and has a moderate impact. While a successful exploit could lead to code execution, the need for local access limits the scope and severity of the threat.

Possible Impact

The successful exploitation of CVE-2025-58485 could have the following impacts:

• Data Theft: Attackers could potentially steal sensitive data stored within the browser, such as cookies, saved passwords, or browsing history.
• Browser Manipulation: The injected script could alter the browser’s behavior, redirecting users to malicious websites or displaying deceptive content.
• Phishing Attacks: Attackers could use the injected script to create fake login forms or other phishing scams to steal user credentials.
• Cross-Site Scripting (XSS) (Potentially): Depending on the context of the injection, it might be possible to leverage this local vulnerability to launch XSS attacks.

Mitigation and Patch Steps

To mitigate the risk posed by CVE-2025-58485, users of Samsung Internet are strongly advised to update their browser to version 29.0.0.48 or later. This update includes a fix that addresses the improper input validation and prevents script injection attacks. Follow these steps:

1. Open the Google Play Store on your Android device.
2. Search for “Samsung Internet”.
3. If an update is available, tap the “Update” button.
4. After the update is complete, restart your browser.

References

• Samsung Security Bulletin