Overview
This report analyzes CVE-2025-26462, a significant vulnerability found in AccessibilityServiceConnection.java. Due to a logic error in the code, there is potential for unprivileged background activity launch leading to local escalation of privilege. This flaw affects a wide range of systems and applications using this file, and its exploitation could lead to severe system compromise or data leakage.
Vulnerability Summary
CVE ID: CVE-2025-26462
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: System compromise, potential data leakage
Affected Products
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Product | Affected Versions
Android OS | Prior to Patch Level 2025-02
Java SDK | Prior to Version X.Y.Z
How the Exploit Works
The exploit leverages a logic error in AccessibilityServiceConnection.java. The error allows an attacker to launch background activities without proper privileges. This could potentially grant the attacker escalated privileges on the local system, leading to unauthorized access to sensitive data or system compromise.
Conceptual Example Code
Here’s a conceptual representation of how the vulnerability might be exploited. Note that this is a representation, not an actual exploit code:
class MaliciousActivity extends AccessibilityService {
@Override
public void onAccessibilityEvent(AccessibilityEvent event) {
// Exploit logic error to launch activity in background
Intent backgroundIntent = new Intent(this, PrivilegedActivity.class);
startActivity(backgroundIntent);
}
}Mitigation
To mitigate this vulnerability, it is recommended to apply the vendor-provided patch as soon as it’s available. In the interim, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation strategy. However, these should not replace the need for patching the affected systems.
