Vulnerabilities > Qnap > Hybrid Backup Sync > Critical
| DATE | CVE | VULNERABILITY TITLE | RISK |
|---|---|---|---|
| 2021-07-08 | CVE-2021-28809 | Unspecified vulnerability in Qnap Hybrid Backup Sync 3.0.210411/3.0.210412/3.0.210506 An improper access control vulnerability has been reported to affect certain legacy versions of HBS 3. | 9.8 |
| 2021-05-13 | CVE-2021-28799 | Unspecified vulnerability in Qnap Hybrid Backup Sync An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. | 9.8 |