CVE-2026-26240
Received Received - Intake
Buffer Overflow in QNAP File Station

Publication date: 2026-06-10

Last updated on: 2026-06-10

Assigner: QNAP Systems, Inc.

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
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Meta Information
Published
2026-06-10
Last Modified
2026-06-10
Generated
2026-06-10
AI Q&A
2026-06-10
EPSS Evaluated
N/A
NVD
CVE-2026-26240
EUVD
EUVD-2026-35983
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
qnap file_station From 5.5.6.5243 (inc)
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-121 A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
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Executive Summary

This vulnerability is a buffer overflow issue affecting File Station 5. Remote attackers can exploit this flaw to modify memory or cause processes to crash.

Impact Analysis

The impact of this vulnerability includes the potential for remote attackers to alter memory contents or crash processes, which could lead to system instability or unauthorized behavior.

Mitigation Strategies

To mitigate this vulnerability, you should update File Station 5 to version 5.5.6.5243 or later, where the buffer overflow issue has been fixed.

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