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CVE-2025-68711 AppLockZ CVE debrief

CVE-2025-68711 describes a local authentication bypass in AppLockZ App Lock and Fingerprint Lock (package: applock.passwordfingerprint.applockz) version 4.2.11 for Android. The vulnerability stems from an insecure implementation where the PIN lock is rendered as a UI overlay rather than leveraging Android's secure authentication APIs. A local attacker with physical device access can navigate through exposed interface flows—specifically via advertisement or browser intents—to circumvent lockscreen verification and gain access to protected applications such as Chrome. This results in information disclosure and privilege escalation within the context of the locked apps. The CVE was published on 2026-05-26 and is currently in 'Received' status per NVD. No CVSS score or severity rating has been assigned. The vulnerability is not listed in CISA's Known Exploited Vulnerabilities (KEV) catalog.

Vendor
AppLockZ
Product
App Lock and Fingerprint Lock
CVSS
LOW 2.4
CISA KEV
Not listed in stored evidence
Original CVE published
2026-05-26
Original CVE updated
2026-07-23
Advisory published
2026-05-26
Advisory updated
2026-07-23

Who should care

Organizations with bring-your-own-device (BYOD) or corporate-owned personally-enabled (COPE) Android deployments; mobile device management (MDM) administrators; security-conscious Android users relying on third-party app locking solutions; incident response teams investigating unauthorized access to protected mobile applications

Technical summary

The AppLockZ application implements its PIN lockscreen as a UI overlay (SYSTEM_ALERT_WINDOW or similar) rather than using Android's secure authentication frameworks such as BiometricPrompt, KeyguardManager, or device credential APIs. This architectural weakness allows an attacker with physical device access to bypass the lock by triggering specific intent flows—particularly through advertisement SDKs or browser intents—that navigate around the overlay without triggering authentication verification. The cascading interface flows expose routes that permit app control evasion, enabling access to protected applications and their data. This represents a fundamental design flaw in the application's security model, as overlay-based locks can be circumvented through task switching, accessibility services, or intent-based navigation that the overlay fails to intercept.

Defensive priority

medium

Recommended defensive actions

  • Review and remove AppLockZ App Lock and Fingerprint Lock version 4.2.11 from managed Android devices pending vendor patch availability
  • Implement application control policies to restrict installation of applications that do not use Android's secure authentication APIs for lockscreen functionality
  • Audit Android devices for applications implementing authentication overlays rather than native secure APIs
  • Apply principle of least privilege to application permissions, particularly for apps requesting overlay or system alert window permissions
  • Monitor for unauthorized access attempts to protected applications on devices where AppLockZ is deployed
  • Consider alternative application locking solutions that properly integrate with Android's BiometricPrompt or KeyguardManager APIs

Evidence notes

The vulnerability description indicates the lock mechanism is implemented as an overlay rather than using Android's secure authentication APIs. The attack vector requires physical access and involves navigation through cascading interface flows via advertisement or browser intents. Source references include a GitHub repository and the Google Play Store listing for the affected application.

Sources and references

Verified primary and authoritative sources

  • CVE-2025-68711 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2025-68711

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2025-68711 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2025-68711

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.