What is CVE-2025-59385?

CVE-2025-59385 is a critical-severity vulnerability in Qnap Qts, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2025-12-16.

How severe is CVE-2025-59385?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Qnap Qts

CVE-2025-59385

An authentication bypass by spoofing vulnerability has been reported to affect several QNAP operating system versions. The remote attackers can then exploit the vulnerability to access resources which are not otherwise accessible without p…

EPSS: 0.006 (45.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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, h5.3.x

Weakness classification (CWE)

CWE-290 — Authentication Bypass by Spoofing

References

security@qnapsecurity.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2025-59385?: CVE-2025-59385 is a critical-severity vulnerability in Qnap Qts, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2025-12-16.
How severe is CVE-2025-59385?: Critical severity. CVSS v3 base score is 9.8 out of 10.