Vulnerability in QNAP File Station
CVE-2025-30279
An improper certificate validation vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to compromise the security of the system. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later
Vulnerability class: Improper Certificate Validation
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (16.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 16th percentile — 16.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.000
Affected products
- QNAP File Station
- QNAP Systems Inc. File Station 5 — versions 5.5.x
Weakness classification (CWE)
References
- www.qnap.com/en/security-advisory/qsa-25-16 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-30279?
- CVE-2025-30279 is a high-severity vulnerability in QNAP File Station, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2025-06-06.
- How severe is CVE-2025-30279?
- High severity. CVSS v3 base score is 8.8 out of 10.