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CVE-2026-24721— Null Pointer Dereference in File Station 5

Quick assessment

Affected
QNAP Systems Inc. File Station 5
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.

据报道，存在一个空指针解引用漏洞，影响 File Station 5。如果远程攻击者获得用户账户权限，则可以利用此漏洞发起拒绝服务（DoS）攻击。 我们已在以下版本中修复该漏洞： File Station 5 5.5.6.5243 及更高版本

CVSS 5.3 · Medium EPSS 0.27% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
QNAP Systems Inc. File Station 5 5.5.x< 5.5.6.5243 affected
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I. Basic Information for CVE-2026-24721

Vulnerability Information
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Vulnerability Title
Null Pointer Dereference in File Station 5
Source: CVE Program / CVE List V5
Vulnerability Description
A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
QNAP Systems Inc. File Station 5 5.5.x ~ 5.5.6.5243 -

II. Public POCs for CVE-2026-24721

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III. Intelligence Information for CVE-2026-24721

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Other References for CVE-2026-24721 (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-2026-34006 9.3 CRITICAL Pre-Authentication Multiple Critical Vulnerabilities in QNAP sMedioDTCPServer
CVE-2026-50619 9.3 CRITICAL Unauthenticated remote code execution vulnerability
CVE-2026-47786 9.3 CRITICAL Pre-Authentication Command Injection
CVE-2026-39997 8.9 HIGH Unauthenticated Remote Input Injection in QNAP HD Station's remotepad
CVE-2026-39993 8.7 HIGH Path Traversal to Root RCE in QNAP Download Station via Addon/Search addon Parameter
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-2026-41544 8.7 HIGH Path Traversal leading to Arbitrary File Move, Docker Escape, and Host RCE in /calapi/rena
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-2026-26244 7.1 HIGH SQLi#1 SQL Injection in class_videos.php _getFilters
CVE-2026-26245 7.1 HIGH SQLi#2 SQL Injection in class_videos.php getSmartVideosByOffset

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

IV. Related Vulnerabilities

Same product: File Station 5
Same vendor: QNAP Systems Inc.
Same weakness: CWE-476

V. Comments for CVE-2026-24721

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