CVE-2025-62840 HIGH

CVE-2025-62840: HBS 3 Hybrid Backup Sync

Vendor Qnap Systems Inc.
Product HBS 3 Hybrid Backup Sync
Weakness CWE-209 · Error message info leak
Published January 2, 2026
Last update January 5, 2026
View on NVD All CVEs

CVSS base score

7.0/10
Attack vector Physical
Attack complexity Low
Privileges required None
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

What the vulnerability does

01Description

A generation of error message containing sensitive information vulnerability has been reported to affect HBS 3 Hybrid Backup Sync. If an attacker gains local network access, they can then exploit the vulnerability to read application data. We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 26.2.0.938 and later

Key dates

02Disclosure timeline

January 2, 2026 CVE published
January 5, 2026 Record updated