CVE-2025-48725: A buffer overflow vulnerability has been reported to affect several QNAP operating system versions

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 version: QuTS hero h5.3.2.3354 build 20251225 and later

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Attack vector

Network

Complexity

Low

Privileges

Low

User interaction

None

Confidentiality

None

Integrity

High

Availability

High

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)0.5% · higher than 40% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

QH

QuTS hero · QNAP Systems Inc.

h5.3.x before h5.3.2.3354 build 20251225 · source: vendor, NVD

QT

Qts · Qnap

5.2.0.2737; 5.2.0.2744; 5.2.0.2782; 5.2.0.2802; 5.2.0.2823; 5.2.0.2851; +13 more · source: NVD