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 the vulnerability in the following version: Qsync Central 4.5.0.7 ( 2025/04/23 ) and later
Vulnerability class: Improper Certificate Validation
EPSS: 0.002 (11.8th 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)
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.