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TI-2025-21263 Aliases CVE-2025-29873GHSA-rqcv-9r22-6rfm

NULL pointer dereference in QNAP File Station 5

Priority LOW 24CWE-476Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-476.

Summary

A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00452 39th percentileScored 2026-11-07
Fix Fixed File Station 5 (QNAP Systems Inc.): 5.5.6.4847

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 5.5.6.48475.5.6.4847Patch availableCNA
  • File Station 5 VendorQNAP Affected 5.5.x to before 5.5.6.4847 Fixed in 5.5.6.4847 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*5.5.6.4691 to before 5.5.6.4847VulnerableQNAP
  • cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:* Versions 5.5.6.4691 to before 5.5.6.4847 Vulnerable ·QNAP

Remediation

  • Fix · CNA File Station 5 (QNAP Systems Inc.) Fixed in 5.5.6.4847

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 5.5.6.4847

    10 records Highest priority Priority LOW 10 LOW

    Other records, highest priority first

    • TI-2025-24025 Improper certificate validation in QNAP File Station 5Priority LOW 36
    • TI-2025-21598 Improper certificate validation in QNAP File Station 5Priority LOW 36
    • TI-2025-24029 Path traversal in QNAP File Station 5Priority LOW 32
    Show all 10 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-29873
  2. 2026-10-03 Alias added: GHSA-rqcv-9r22-6rfm

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