#VU110656 NULL pointer dereference in File Station 5 - CVE-2025-29876

Vulnerability identifier: #VU110656

Vulnerability risk: Medium

CVSSv4.0: 4.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-29876

CWE-ID: CWE-476

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
File Station 5
Other software / Other software solutions

Vendor: QNAP Systems, Inc.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

File Station 5: before 5.5.6.4847

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External links
https://www.qnap.com/en/security-advisory/qsa-25-16

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.