What is CVE-2025-62856?

CVE-2025-62856 is a medium-severity vulnerability in Qnap File_station, classified under Path Traversal. CVSS score: 4.4/10. Published 2026-02-11.

How severe is CVE-2025-62856?

Medium severity. CVSS v3 base score is 4.4 out of 10.

Path Traversal in Qnap File_station

CVE-2025-62856

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 alread…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.003 (25.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N.

Affected products

Qnap File_station
Qnap Systems Inc. File Station 5 — versions 5.5.x

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security@qnapsecurity.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2025-62856?: CVE-2025-62856 is a medium-severity vulnerability in Qnap File_station, classified under Path Traversal. CVSS score: 4.4/10. Published 2026-02-11.
How severe is CVE-2025-62856?: Medium severity. CVSS v3 base score is 4.4 out of 10.