What is CVE-2025-30278?

CVE-2025-30278 is a high-severity vulnerability in Qnap Qsync_central, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2025-08-29.

How severe is CVE-2025-30278?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Qnap Qsync_central

CVE-2025-30278

An improper certificate validation vulnerability has been reported to affect Qsync Central. 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…

Vulnerability class: Improper Certificate Validation

EPSS: 0.002 (11.6th percentile) — read the EPSS interpretation.

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.

Affected products

Qnap Qsync_central
Qnap Systems Inc. Qsync Central — versions 4.5.x.x

Weakness classification (CWE)

CWE-295 — Improper Certificate Validation

References

security@qnapsecurity.com.tw (Vendor Advisory)

Frequently asked questions

What is CVE-2025-30278?: CVE-2025-30278 is a high-severity vulnerability in Qnap Qsync_central, classified under Improper Certificate Validation. CVSS score: 8.8/10. Published 2025-08-29.
How severe is CVE-2025-30278?: High severity. CVSS v3 base score is 8.8 out of 10.