Description
A buffer overflow vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains a user account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following versions: QTS 5.2.5.3145 build 20250526 and later QuTS hero h5.2.5.3138 build 20250519 and later
References (1)
Core 1
Core References
Vendor Advisory
https://www.qnap.com/en/security-advisory/qsa-25-21
Scores
CVSS v3
6.5
EPSS
0.0014
EPSS Percentile
33.7%
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-121
CWE-120
Status
published
Products (26)
qnap/qts
5.2.0.2737 build_20240417
qnap/qts
5.2.0.2744 build_20240424
qnap/qts
5.2.0.2782 build_20240601
qnap/qts
5.2.0.2802 build_20240620
qnap/qts
5.2.0.2823 build_20240711
qnap/qts
5.2.0.2851 build_20240808
qnap/qts
5.2.0.2860 build_20240817
qnap/qts
5.2.1.2930 build_20241025
qnap/qts
5.2.2.2950 build_20241114
qnap/qts
5.2.3.3006 build_20250108
... and 16 more
Published
Aug 29, 2025
Tracked Since
Feb 18, 2026