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

NVD

Vulnerability Analysis

CVE-2025-30269 can be exploited with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE

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

Want to know whenever a new CVE is published for QNAP Qsync Central? stack.watch will email you.

QNAP Qsync Central
 

Affected Versions

QNAP Systems Inc. Qsync Central:

Exploit Probability

EPSS
0.28%
Percentile
20.18%

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.