Incorrect authorization in QNAP File Station 5
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-863.
Summary
An incorrect authorization vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the vulnerability to bypass intended access restrictions. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.5243 and later
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA File Station 5 (QNAP Systems Inc.) Fixed in 5.5.6.5243
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
QNAP Systems File Station 5 5.5.6.5243
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-21230 Stack-based buffer overflow in QNAP File Station 5Priority LOW 14
- TI-2026-21229 Stack-based buffer overflow in QNAP File Station 5Priority LOW 14
- TI-2026-19931 Resource allocation without limits in QNAP File Station 5Priority LOW 8
Timeline
- 2026-10-02 Threatist record created from CVE-2026-24724
- 2026-10-03 Alias added: GHSA-q4p9-vcgx-vmc3
References
More QNAP File Station vulnerabilities
- TI-2025-24025 Improper certificate validation in QNAP File Station 5 CVSS 4.0HIGH 8.3
- TI-2025-21598 Improper certificate validation in QNAP File Station 5 CVSS 4.0HIGH 8.3
- TI-2025-21273 Improper certificate validation in QNAP File Station 5 CVSS 4.0HIGH 8.3
- TI-2025-21272 Improper certificate validation in QNAP File Station 5 CVSS 4.0HIGH 8.3
- TI-2025-21271 Improper certificate validation in QNAP File Station 5 CVSS 4.0HIGH 8.3
- TI-2025-24029 Path traversal in QNAP File Station 5 CVSS 4.0HIGH 7.2
Sources
- CVE-2026-24724 · CVE Program
- CVE-2026-24724 · NVD
- FIRST EPSS
- GHSA-q4p9-vcgx-vmc3 · GitHub Advisory Database · CC BY 4.0
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