QNAP Hbs 3 Vulnerabilities

Qnap Hbs 3 vulnerabilities.

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2 January 2026

File Path Control Flaw in HBS 3 Hybrid Backup Sync by QNAP
CVE-2025-62842
QNAPHbs 3 Hybrid Backup Sync7HIGH
Sensitive Information Exposure in HBS 3 Hybrid Backup Sync by QNAP
CVE-2025-62840
QNAPHbs 3 Hybrid Backup Sync7HIGH

7 March 2025

Buffer Overflow Vulnerability in HBS 3 Hybrid Backup Sync by QNAP
CVE-2024-53695
QNAPHbs 3 Hybrid Backup Sync6.3MEDIUM

8 July 2021

Missing Authentication for Critical Function in RTRR Server in HBS3
CVE-2021-28809
QNAPHbs 39.8CRITICAL

13 May 2021

Improper Authorization Vulnerability in HBS 3 (Hybrid Backup Sync)
CVE-2021-28799
QNAPHbs 3💰👾EPSS 91%🦅9.8CRITICAL