Resource exhaustion in QNAP Qts
CVE-2025-47208
An allocation of resources without limits or throttling vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user 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 versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.003 (25.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 25th percentile — 25.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- QNAP Qts — versions 5.2.0.2737, 5.2.0.2744, 5.2.0.2782
- QNAP Quts Hero — versions h5.2.0.2737, h5.2.0.2782, h5.2.0.2789
- QNAP Systems Inc. Qts — versions 5.2.x
- QNAP Systems Inc. Quts Hero — versions h5.2.x
Weakness classification (CWE)
References
- www.qnap.com/en/security-advisory/qsa-25-50 (Vendor Advisory)
Frequently asked questions
- What is CVE-2025-47208?
- CVE-2025-47208 is a medium-severity vulnerability in QNAP Qts, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 6.5/10. Published 2026-01-02.
- How severe is CVE-2025-47208?
- Medium severity. CVSS v3 base score is 6.5 out of 10.