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CVE-2026-39997— Unauthenticated Remote Input Injection in QNAP HD Station's remotepad

Quick assessment

Affected
QNAP Systems Inc. HybridDesk Station
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.

已报告发现一起针对 HybridDesk Station 的关键功能缺失身份验证漏洞。如被利用，该漏洞可能允许远程攻击者访问系统。 我们已在以下版本中修复了此漏洞： HybridDesk Station 4.2.22 及更新版本

CVSS 8.9 · High

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-39997

Vulnerability Information
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Vulnerability Title
Unauthenticated Remote Input Injection in QNAP HD Station's remotepad
Source: CVE Program / CVE List V5
Vulnerability Description
A missing authentication for critical function vulnerability has been reported to affect HybridDesk Station. If exploited, the vulnerability could allow remote attackers to gain access to the system. We have already fixed the vulnerability in the following version: HybridDesk Station 4.2.22 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
QNAP Systems Inc. HybridDesk Station 4.2.x ~ 4.2.22 -

II. Public POCs for CVE-2026-39997

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III. Intelligence Information for CVE-2026-39997

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Other References for CVE-2026-39997 (1)

Same Patch Batch · QNAP Systems Inc. · 2026-10-15 · 35 CVEs total

CVE-2026-50612 9.4 CRITICAL Import Symlink Following Remote Code Execution Vulnerability in QuMagie
CVE-2026-50619 9.3 CRITICAL Unauthenticated remote code execution vulnerability
CVE-2026-47786 9.3 CRITICAL Pre-Authentication Command Injection
CVE-2026-34006 9.3 CRITICAL Pre-Authentication Multiple Critical Vulnerabilities in QNAP sMedioDTCPServer
CVE-2026-39993 8.7 HIGH Path Traversal to Root RCE in QNAP Download Station via Addon/Search addon Parameter
CVE-2026-41544 8.7 HIGH Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/rena
CVE-2026-34015 8.7 HIGH Remote Code Execution in upload.php of Video Station
CVE-2026-44084 8.7 HIGH Access Code Forgery in Video Station leading to unauthorized media access
CVE-2026-53882 8.7 HIGH Path Traversal in Virtualization Station VM Import
CVE-2026-41545 8.6 HIGH WebSocket timelapse path traversal and command injection
CVE-2026-34008 8.5 HIGH **Privilege Escalation** World-writable crontab path monitored and executed by root-owned
CVE-2026-34014 8.4 HIGH ds-move-files.sh is writable and executed as root
CVE-2026-34009 8.4 HIGH **Container Escape** Host user home directory mounted with write access into application c
CVE-2025-66275 7.7 HIGH Remote code execution via command injection
CVE-2025-66272 7.7 HIGH Arbitrary file deletion and remote code execution
CVE-2025-68404 7.5 HIGH vcs_pentest Race Condition Authentication Bypass Vulnerability in QuRouter management inte
CVE-2026-26243 7.2 HIGH Arbitrary Folder Deletion in Qsync Central 5.0.0.5
CVE-2026-26245 7.1 HIGH SQLi#2 SQL Injection in class_videos.php getSmartVideosByOffset
CVE-2026-26244 7.1 HIGH SQLi#1 SQL Injection in class_videos.php _getFilters
CVE-2026-34007 6.9 MEDIUM **RCE** Unsanitized `X-Forwarded-For` header passed to `shell_exec()` via broken IP valida

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

IV. Related Vulnerabilities

Same product: HybridDesk Station
Same vendor: QNAP Systems Inc.
Same weakness: CWE-306

V. Comments for CVE-2026-39997

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