Out-of-bounds Read in QNAP File Station
CVE-2025-29871
An out-of-bounds read vulnerability has been reported to affect File Station 5. If a local attacker gains an administrator account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.001 (2.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 3rd percentile — 2.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · 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-2025-29871?
- CVE-2025-29871 is a medium-severity vulnerability in QNAP File Station, classified under Out-of-bounds Read. CVSS score: 5.5/10. Published 2025-06-06.
- How severe is CVE-2025-29871?
- Medium severity. CVSS v3 base score is 5.5 out of 10.