Overview
A vulnerability has been identified in the updateState function of ContentProtectionTogglePreferenceController.java that can potentially enable a secondary user to disable the primary user’s deceptive app scanning settings. This vulnerability is a serious concern, as it could lead to local escalation of privilege, compromising system security and potentially leading to data leakage. It is particularly worrisome as it requires no additional execution privileges or user interaction for exploitation.
Vulnerability Summary
CVE ID: CVE-2025-26435
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: None
User Interaction: None
Impact: Local escalation of privilege potentially leading to system compromise or data leakage
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Product | Affected Versions
Java | All versions prior to patch
How the Exploit Works
This vulnerability arises due to a logic error in the code of ContentProtectionTogglePreferenceController.java. Specifically, the updateState function incorrectly allows a secondary user to modify the primary user’s deceptive app scanning setting. An attacker exploiting this vulnerability can disable the primary user’s application scanning, potentially installing malicious applications without detection, thereby compromising the system’s security.
Conceptual Example Code
The following is a conceptual example of how the vulnerability might be exploited. This pseudocode illustrates how a secondary user could potentially disable the primary user’s app scanning setting:
// Pseudo-code for exploiting CVE-2025-26435
SecondaryUser su = getSecondaryUser();
ContentProtectionTogglePreferenceController cptpc = getContentProtectionToggleController();
if (su.hasAccess(cptpc)) {
cptpc.updateState(false); // Disables deceptive app scanning for primary user
}
Mitigation Guidance
System administrators are strongly advised to apply the vendor patch as soon as it is available to mitigate this vulnerability. In the interim, the use of a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can provide temporary mitigation. These systems should be configured to monitor and block suspicious activities and changes to user privileges.

