PatchSiren cyber security CVE debrief
CVE-2025-68708 SailingLab CVE debrief
CVE-2025-68708 describes a local authentication bypass in SailingLab AppLock (com.alpha.applock) version 4.3.8 for Android, published 2026-05-26. The application implements its PIN lock as an overlay rather than using Android's secure authentication APIs. A local attacker with physical device access can bypass this lock by navigating through cascading interface flows—specifically via advertisement or browser intents—to evade lockscreen verification and access protected applications such as Chrome. This results in information disclosure and privilege escalation. The vulnerability stems from insecure navigation through exposed routes that facilitate application control evasion. No CVSS score or severity rating is currently assigned. The vendor identification carries low confidence and requires review, with Google identified only as a reference domain candidate. No known exploitation in ransomware campaigns has been documented, and this CVE is not listed in CISA's Known Exploited Vulnerabilities catalog.
- Vendor
- SailingLab
- Product
- AppLock
- CVSS
- LOW 2.4
- CISA KEV
- Not listed in stored evidence
- Original CVE published
- 2026-05-26
- Original CVE updated
- 2026-05-27
- Advisory published
- 2026-05-26
- Advisory updated
- 2026-05-27
Who should care
Mobile security administrators, Android device management teams, endpoint protection engineers, and organizations with bring-your-own-device (BYOD) policies should prioritize assessment. Users relying on AppLock for application protection on personal or corporate devices are directly affected. Security auditors evaluating third-party app locker solutions should review this vulnerability as a case study in insecure authentication implementations. Incident response teams should check for signs of unauthorized access on devices where this application was deployed.
Technical summary
SailingLab AppLock 4.3.8 implements PIN authentication as an overlay view rather than using Android's KeyguardManager or BiometricPrompt APIs. This architectural weakness allows a local attacker with physical access to circumvent the lock by triggering advertisement or browser intents that navigate through exposed interface routes. The cascading navigation flows bypass the overlay lock without requiring PIN entry, granting access to protected applications. The vulnerability enables information disclosure (viewing protected app contents) and privilege escalation (executing actions within protected apps). Attack complexity is low given physical access, with no authentication required beyond device possession.
Defensive priority
high
Recommended defensive actions
- Uninstall SailingLab AppLock (com.alpha.applock) version 4.3.8 from all Android devices until a patched version is available
- Implement application control policies to block installation of AppLock 4.3.8 using mobile device management (MDM) solutions
- Audit Android devices for presence of com.alpha.applock package and remove if found
- Educate users against relying on third-party app lockers that do not leverage Android's secure authentication APIs
- Monitor for unauthorized access to protected applications on devices where AppLock was previously installed
- Apply Android security updates and enable Google Play Protect to detect potentially harmful applications
- resourceLinkAnnotations: [ref-4, ref-5, ref-6]
Evidence notes
Vulnerability description sourced from official CVE record and NVD entry. Technical details regarding overlay-based lock implementation and bypass via intent navigation derived from CVE description. Vendor attribution marked as low confidence per source metadata. No CVSS vector or weakness enumerations present in source data.
Official resources
2026-05-26