CVE-2026-22899
published 2026-06-10CVE-2026-22899: A NULL pointer dereference vulnerability has been reported to affect File Station 6. If a remote attacker gains a user account, they can then exploit the…
PriorityP432medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.38%
30.8th percentile
A NULL pointer dereference vulnerability has been reported to affect File Station 6. 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 5.5.6.5208 and later
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| qnap | file_station | >= 5.5.6.4691 < 5.5.6.5208 | 5.5.6.5208 |
| qnap_systems_inc | file_station_5 | >= 5.5.0 < 5.5.6.5208 | 5.5.6.5208 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv4.01.3LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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VulDB
QNAP File Station 5 5.5.6.5208 User Account null pointer dereference (qsa-26-19 / EUVD-2026-35973)
vuldb·2026-06-15·CVSS 6.5
CVE-2026-22899 [MEDIUM] QNAP File Station 5 5.5.6.5208 User Account null pointer dereference (qsa-26-19 / EUVD-2026-35973)
A vulnerability categorized as problematic has been discovered in QNAP File Station 5 5.5.6.5208. This affects an unknown function of the component User Account Handler. Such manipulation leads to null pointer dereference.
This vulnerability is referenced as CVE-2026-22899. It is possible to launch the attack remotely. No exploit is available.
It is advisable to upgrade the affected component.
GHSA
A NULL pointer dereference vulnerability has been reported to affect File Station 6.
ghsa_unreviewed·2026-06-10
CVE-2026-22899 [MEDIUM] CWE-476 A NULL pointer dereference vulnerability has been reported to affect File Station 6.
A NULL pointer dereference vulnerability has been reported to affect File Station 6. 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 5.5.6.5208 and later
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-06-10
Published