Security Vulnerabilities
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator 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:
QuTS hero h5.3.2.3354 build 20251225 and later
CVSS Score
4.9
EPSS Score
0.001
Published
2026-02-11
A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator 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:
QuTS hero h5.3.2.3354 build 20251225 and later
CVSS Score
4.9
EPSS Score
0.001
Published
2026-02-11
A path traversal vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data.
We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5166 and later
CVSS Score
6.5
EPSS Score
0.001
Published
2026-02-11
An uncontrolled resource consumption 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 5.5.6.5190 and later
CVSS Score
6.5
EPSS Score
0.0
Published
2026-02-11
A path traversal vulnerability has been reported to affect File Station 5. If a local attacker gains an administrator account, they can then exploit the vulnerability to read the contents of unexpected files or system data.
We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5190 and later
CVSS Score
4.4
EPSS Score
0.0
Published
2026-02-11
An allocation of resources without limits or throttling vulnerability has been reported to affect Qsync Central. If a remote attacker gains an administrator account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource.
We have already fixed the vulnerability in the following version:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
CVSS Score
4.9
EPSS Score
0.0
Published
2026-02-11
An allocation of resources without limits or throttling vulnerability has been reported to affect Qsync Central. If a remote attacker gains an administrator account, they can then exploit the vulnerability to prevent other systems, applications, or processes from accessing the same type of resource.
We have already fixed the vulnerability in the following version:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
CVSS Score
4.9
EPSS Score
0.0
Published
2026-02-11
A weak authentication vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the vulnerability to gain sensitive information.
We have already fixed the vulnerability in the following version:
File Station 5 5.5.6.5166 and later
CVSS Score
7.5
EPSS Score
0.001
Published
2026-02-11
A use of uninitialized variable vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to denial of service conditions, or modify control flow in unexpected ways.
We have already fixed the vulnerability in the following versions:
QTS 5.2.8.3332 build 20251128 and later
QuTS hero h5.2.8.3321 build 20251117 and later
CVSS Score
4.9
EPSS Score
0.001
Published
2026-02-11
A relative path traversal vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to read the contents of unexpected files or system data.
We have already fixed the vulnerability in the following version:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
CVSS Score
6.5
EPSS Score
0.002
Published
2026-02-11