Ext-Cont-Format-String Vuln in Qsync Central <5.0.0.4 (CVE-2025-30269)
CVE-2025-30269 Published on February 11, 2026
Qsync Central
A use of externally-controlled format string vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to obtain secret data or modify memory.
We have already fixed the vulnerability in the following version:
Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
Weakness Type
Use of Externally-Controlled Format String
The software uses a function that accepts a format string as an argument, but the format string originates from an external source.
Products Associated with CVE-2025-30269
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Affected Versions
QNAP Systems Inc. Qsync Central:- Version 5.0.x.x and below 5.0.0.4 ( 2026/01/20 ) is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.