CVE Vulnerabilities

CVE-2025-52857

NULL Pointer Dereference

Published: Oct 03, 2025 | Modified: Oct 08, 2025
CVSS 3.x
4.9
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
Ubuntu

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

Weakness

The product dereferences a pointer that it expects to be valid but is NULL.

Affected Software

Name Vendor Start Version End Version
Qts Qnap 5.2.0.2737-build_20240417 (including) 5.2.0.2737-build_20240417 (including)
Qts Qnap 5.2.0.2744-build_20240424 (including) 5.2.0.2744-build_20240424 (including)
Qts Qnap 5.2.0.2782-build_20240601 (including) 5.2.0.2782-build_20240601 (including)
Qts Qnap 5.2.0.2802-build_20240620 (including) 5.2.0.2802-build_20240620 (including)
Qts Qnap 5.2.0.2823-build_20240711 (including) 5.2.0.2823-build_20240711 (including)
Qts Qnap 5.2.0.2851-build_20240808 (including) 5.2.0.2851-build_20240808 (including)
Qts Qnap 5.2.0.2860-build_20240817 (including) 5.2.0.2860-build_20240817 (including)
Qts Qnap 5.2.1.2930-build_20241025 (including) 5.2.1.2930-build_20241025 (including)
Qts Qnap 5.2.2.2950-build_20241114 (including) 5.2.2.2950-build_20241114 (including)
Qts Qnap 5.2.3.3006-build_20250108 (including) 5.2.3.3006-build_20250108 (including)
Qts Qnap 5.2.4.3070-build_20250312 (including) 5.2.4.3070-build_20250312 (including)
Qts Qnap 5.2.4.3079-build_20250321 (including) 5.2.4.3079-build_20250321 (including)
Qts Qnap 5.2.4.3092-build_20250403 (including) 5.2.4.3092-build_20250403 (including)
Qts Qnap 5.2.5.3145-build_20250526 (including) 5.2.5.3145-build_20250526 (including)

Potential Mitigations

References