CVE-2025-62840: A generation of error message containing sensitive information vulnerability has been reported to affect HBS 3 Hybrid…
CVE-2025-62840 · Severity: low · CVSS 3.3 · Published 2026-01-02
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
No. Junglewise Threat Intelligence has no report of CVE-2025-62840 being exploited in the wild.
How severe is CVE-2025-62840?
Low severity, with a CVSS score of 3.3, published 2 January 2026.
Which products and versions are affected?
QNAP Hybrid Backup Sync. The advisory does not name versions.
Is there a fix for CVE-2025-62840?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2025-62840?
Check whether you run QNAP Hybrid Backup Sync. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.