Read the docs
TI-2025-16376 Aliases CVE-2025-22486GHSA-4m6f-x2gc-6fgq

Improper certificate validation in QNAP File Station 5

Priority LOW 31CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Spoofing
Confidentiality · integrity · availability
None · Low · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

An improper certificate validation vulnerability has been reported to affect File Station 5. If exploited, the vulnerability could allow remote attackers who have gained user access to compromise the security of the system. We have already fixed the vulnerability in the following versions: File Station 5 5.5.6.4791 and later and later

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00275 19th percentileScored 2026-11-07
Fix Fixed File Station 5 (QNAP Systems Inc.): 5.5.6.4791

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
QNAPFile Station 55.5.x to before 5.5.6.47915.5.6.4791Patch availableCNA
  • File Station 5 VendorQNAP Affected 5.5.x to before 5.5.6.4791 Fixed in 5.5.6.4791 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*5.5.6.4691 to before 5.5.6.4791VulnerableQNAP
  • cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:* Versions 5.5.6.4691 to before 5.5.6.4791 Vulnerable ·QNAP

Remediation

  • Fix · CNA File Station 5 (QNAP Systems Inc.) Fixed in 5.5.6.4791

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 5.5.6.4791

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2025-21273 Improper certificate validation in QNAP File Station 5Priority LOW 36
    • TI-2025-21272 Improper certificate validation in QNAP File Station 5Priority LOW 36
    • TI-2025-21271 Improper certificate validation in QNAP File Station 5Priority LOW 36
    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-22486
  2. 2026-10-03 Alias added: GHSA-4m6f-x2gc-6fgq

References

Advisory 1

  • 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-2026-19932 Incorrect authorization in QNAP File Station 5 CVSS 4.0MEDIUM 6.2
See all 56 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences