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CVE-2025-48535: Launch Anywhere Vulnerability Due to Unsafe Deserialization in AppRestrictionsFragment.java

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Overview

The vulnerability, CVE-2025-48535, is a serious security flaw found in the AppRestrictionsFragment.java component. It can be exploited by manipulating a parcel mismatch which can result in a ‘launch anywhere’ vulnerability. This flaw affects all systems running applications with the vulnerable component. It is of significant concern due to its potential for a local escalation of privilege and the possibility of system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-48535
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: Potential system compromise, data leakage

Affected Products

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Product | Affected Versions

Java | All versions up to 8.0
Android | All versions up to 10.0

How the Exploit Works

The exploit works by manipulating the deserialization process in the AppRestrictionsFragment.java component. By exploiting a parcel mismatch, an attacker can cause the system to erroneously launch activities anywhere. This could lead to local escalation of privilege, thereby allowing the attacker to gain unauthorized access to system resources or data.

Conceptual Example Code

The following is a conceptual example of how the vulnerability might be exploited. This sample HTTP request sends a ‘malicious_payload’ which manipulates the parcel mismatch.

POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "parcel_mismatch": "exploit_code" }

In this example, ‘exploit_code’ would be replaced with code specifically crafted to exploit the parcel mismatch vulnerability.

Mitigation

To mitigate this vulnerability, it is advised to apply the vendor patch as soon as it is available. In the meantime, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. Regular monitoring and updating of systems is always a recommended practice to maintain a secure environment.

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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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