Exposure of Applications' Encryption PINs in Kruger&Matz AppLock
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
An application "com.pri.applock", which is pre-loaded on Kruger&Matz smartphones, allows a user to encrypt any application using user-provided PIN code or by using biometric data. Exposed ”com.android.providers.settings.fingerprint.PriFpShareProvider“ content provider's public method query() allows any other malicious application, without any granted Android system permissions, to exfiltrate the PIN code. Only version (version name: 13, version code: 33) was tested and confirmed to have this vulnerability. Application update was released in April 2025.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Kruger&Matz | com.pri.applock | 13 | — | No fix listed | CNA |
- com.pri.applock VendorKruger&Matz Affected 13 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-13916
- 2026-10-03 Alias added: GHSA-pw53-33fx-vf55
References
More Kruger&Matz vulnerabilities
- TI-2024-12936 Intent Injection in Kruger&Matz AppLock application CVSS 4.0HIGH 8.3
Sources
- CVE-2024-13916 · CVE Program
- CVE-2024-13916 · NVD
- FIRST EPSS
- GHSA-pw53-33fx-vf55 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences