CVE-2025-30266
MEDIUMQsync Central 5.0.0.0-5.0.0.3 - Authenticated Denial of Service via NULL Pointer Dereference
Title source: llmDescription
A NULL pointer dereference vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
References (1)
Core 1
Core References
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-26-02
Scores
CVSS v3
6.5
EPSS
0.0005
EPSS Percentile
15.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (1)
qnap/qsync_central
5.0.0.0 - 5.0.0.4
Published
Feb 11, 2026
Tracked Since
Feb 18, 2026