ByteOS Network

NVD Vulnerability Details :

CVE-2025-62840

Analyzed

Source-security@qnapsecurity.com.tw

Published At-02 Jan, 2026 | 16:17

Updated At-05 Feb, 2026 | 19:04

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

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	4.0	7.0	HIGH	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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary	3.1	3.3	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Type: Secondary

Version: 4.0

Base score: 7.0

Base severity: HIGH

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Type: Primary

Version: 3.1

Base score: 3.3

Base severity: LOW

Vector:

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CPE Matches

QNAP Systems, Inc.

>>hybrid_backup_sync>>Versions before 26.2.0.938(exclusive)

cpe:2.3:a:qnap:hybrid_backup_sync:*:*:*:*:*:*:*:*

Weaknesses

CWE ID	Type	Source
CWE-209	Primary	security@qnapsecurity.com.tw

CWE ID: CWE-209

Type: Primary

Source: security@qnapsecurity.com.tw

References

Hyperlink	Source	Resource
https://www.qnap.com/en/security-advisory/qsa-25-46	security@qnapsecurity.com.tw	Vendor Advisory

Hyperlink: https://www.qnap.com/en/security-advisory/qsa-25-46

Source: security@qnapsecurity.com.tw

Resource:

Vendor Advisory

CISA Catalog

Metrics

CPE Matches

Weaknesses

Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References

Change History