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CVE-2025-62842— HBS 3 Hybrid Backup Sync

Quick assessment

Affected
QNAP Systems Inc. HBS 3 Hybrid Backup Sync
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

QNAP Systems HBS 3 Hybrid Backup Sync是中国台湾威联通科技（QNAP Systems）公司的一个备份与同步工具。 QNAP Systems HBS 3 Hybrid Backup Sync存在安全漏洞，该漏洞源于文件名或路径的外部控制，可能导致读取或修改文件或目录。

AI Predicted 5.5 Difficulty: Easy EPSS 0.27% · P17

Possible ATT&CK Techniques 1 AI

T1083 · File and Directory Discovery
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I. Basic Information for CVE-2025-62842

Vulnerability Information
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Vulnerability Title
HBS 3 Hybrid Backup Sync
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP Systems HBS 3 Hybrid Backup Sync 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems HBS 3 Hybrid Backup Sync是中国台湾威联通科技（QNAP Systems）公司的一个备份与同步工具。 QNAP Systems HBS 3 Hybrid Backup Sync存在安全漏洞，该漏洞源于文件名或路径的外部控制，可能导致读取或修改文件或目录。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
QNAP Systems Inc. HBS 3 Hybrid Backup Sync 26.1.x ~ 26.2.0.938 -

II. Public POCs for CVE-2025-62842

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III. Intelligence Information for CVE-2025-62842

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Same Patch Batch · QNAP Systems Inc. · 2026-01-02 · 35 CVEs total

CVE-2025-59380 QTS, QuTS hero
CVE-2025-54165 QTS, QuTS hero
CVE-2025-54166 QTS, QuTS hero
CVE-2025-57705 QTS, QuTS hero
CVE-2025-9110 QTS, QuTS hero
CVE-2025-48721 QTS, QuTS hero
CVE-2025-52871 License Center
CVE-2025-53594 Qfinder Pro, Qsync, QVPN
CVE-2025-53597 License Center
CVE-2025-54164 QTS, QuTS hero
CVE-2025-59381 QTS, QuTS hero
CVE-2025-59384 Qfiling
CVE-2025-59387 MARS (Multi-Application Recovery Service)
CVE-2025-62852 QTS, QuTS hero
CVE-2025-11837 Malware Remover
CVE-2025-62840 HBS 3 Hybrid Backup Sync
CVE-2025-59389 Hyper Data Protector
CVE-2025-53405 QTS, QuTS hero
CVE-2025-44013 QTS, QuTS hero
CVE-2025-47208 QTS, QuTS hero

Showing top 20 of 35 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: HBS 3 Hybrid Backup Sync
Same vendor: QNAP Systems Inc.
Same weakness: CWE-73

V. Comments for CVE-2025-62842

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