CVE-2026-26241— 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.
QNAP Systems File Station 5是中国台湾威联通科技（QNAP Systems）公司的一个文件管理系统。 QNAP Systems File Station 5存在安全漏洞，该漏洞源于缓冲区溢出，可能导致远程攻击者修改内存或使进程崩溃。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1203 · Exploitation for Client ExecutionAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| QNAP Systems Inc. | File Station 5 | 5.5.0< 5.5.6.5243 |
affected |
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I. Basic Information for CVE-2026-26241
Vulnerability Information
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Vulnerability Title
File Station 5
Source: CVE Program / CVE List V5
Vulnerability Description
A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the vulnerability to modify memory or crash processes.
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:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
QNAP Systems File Station 5 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
QNAP Systems File Station 5是中国台湾威联通科技（QNAP Systems）公司的一个文件管理系统。 QNAP Systems File Station 5存在安全漏洞，该漏洞源于缓冲区溢出，可能导致远程攻击者修改内存或使进程崩溃。
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. | File Station 5 | 5.5.0 ~ 5.5.6.5243 | - |
|
II. Public POCs for CVE-2026-26241
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-26241 (1)
Same Patch Batch · QNAP Systems Inc. · 2026-06-10 · 20 CVEs total
| CVE-2026-22893 | QTS, QuTS hero | |
| CVE-2025-66276 | QTS | |
| CVE-2025-59382 | QTS, QuTS hero, QuTScloud, QVP (QVR Pro appliances) | |
| CVE-2025-58468 | Notification Center | |
| CVE-2025-62850 | QuTS hero | |
| CVE-2025-62851 | License Center | |
| CVE-2025-66273 | QTS, QuTS hero | |
| CVE-2025-66279 | QTS, QuTS hero | |
| CVE-2025-66280 | QTS, QuTS hero | |
| CVE-2025-66281 | QTS, QuTS hero | |
| CVE-2026-26240 | File Station 5 | |
| CVE-2026-22899 | File Station 5 | |
| CVE-2026-24720 | File Station 5 | |
| CVE-2026-24716 | QTS, QuTS hero | |
| CVE-2026-24717 | QTS, QuTS hero | |
| CVE-2026-24719 | QTS, QuTS hero | |
| CVE-2026-26237 | QuMagie | |
| CVE-2026-26239 | File Station 5 | |
| CVE-2026-24724 | File Station 5 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-26241
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