Critical severity9.1NVD Advisory· Published Jun 10, 2026· Updated Jun 12, 2026
CVE-2026-26240
CVE-2026-26240
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
Affected products
2cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*range: >=5.5.6.4691,<5.5.6.5243
- (no CPE)range: <5.5.6.5243
Patches
Vulnerability mechanics
References
1- www.qnap.com/en/security-advisory/qsa-26-32nvdBroken Link
News mentions
1- QNAP Patches Multiple Injection Vulnerabilities Leads to Arbitrary Command ExecutionCyber Security News · Jun 22, 2026