Unrated severityNVD Advisory· Published Jan 2, 2026· Updated Jan 5, 2026
HBS 3 Hybrid Backup Sync
CVE-2025-62842
Description
An external control of file name or path 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 or modify files or directories.
We have already fixed the vulnerability in the following version: HBS 3 Hybrid Backup Sync 26.2.0.938 and later
Affected products
2- Range: <26.2.0.938
- QNAP Systems Inc./HBS 3 Hybrid Backup Syncv5Range: 26.1.x
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1News mentions
1- ZDI-26-243: (Pwn2Own) QNAP TS-453E write_file_to_svr External Control of File Path Remote Code Execution VulnerabilityZero Day Initiative · Mar 30, 2026