# CVE-2025-62840: A generation of error message containing sensitive information vulnerability has been reported to affect HBS 3 Hybrid…

Source: https://junglewise.ai/threats/cve-2025-62840-a-generation-of-error-message-containing-sensitive-information  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-01-02  
License: CC BY 4.0 with a link back

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

Technologies: [QNAP Hybrid Backup Sync](https://junglewise.ai/threats/technologies/hybrid-backup-sync). Vendors: [QNAP](https://junglewise.ai/threats/vendors/qnap).

## Quick answers

**Is CVE-2025-62840 exploited in the wild?** 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.

## Affected products

- QNAP Hybrid Backup Sync

## Related threats

- [QNAP Hybrid Backup Sync hard-coded cryptographic key](https://junglewise.ai/threats/cve-2025-62841-an-use-of-hard-coded-cryptographic-key-vulnerability-has-been)
- [QNAP Hybrid Backup Sync hard-coded cryptographic key](https://junglewise.ai/threats/cve-2025-62839-an-use-of-hard-coded-cryptographic-key-vulnerability-has-been)
- [QNAP HBS 3 Hybrid Backup Sync path traversal](https://junglewise.ai/threats/cve-2025-62842-qnap-hbs-3-hybrid-backup-sync-path-traversal)