CVE-2025-48726

MEDIUM

QNAP QTS and QuTS hero - Denial of Service via NULL Pointer Dereference

Title source: llm
STIX 2.1

Description

A NULL pointer dereference vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following versions: QTS 5.2.6.3195 build 20250715 and later QuTS hero h5.2.6.3195 build 20250715 and later

References (1)

Core 1
Core References

Scores

CVSS v3 4.9
EPSS 0.0014
EPSS Percentile 33.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:H/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 (28)
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 18 more
Published Oct 03, 2025
Tracked Since Feb 18, 2026