CVE-2025-66280

An integer overflow or wraparound 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 compromise the security of the system. We have already fixed the vulnerability in the following versions: QTS 5.2.9.3410 build 20260214 and later QuTS hero h5.2.9.3410 build 20260214 and later QuTS hero h5.3.4.3500 build 20260520 and later QuTS hero h6.0.0.3397 build 20260206 and later
References
Link Resource
https://www.qnap.com/en/security-advisory/qsa-26-10 Broken Link Vendor Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*

History

23 Jul 2026, 09:10

Type Values Removed Values Added
Summary
  • (es) Una vulnerabilidad de desbordamiento de entero o 'wraparound' ha sido reportada que afecta a varias versiones del sistema operativo QNAP. Si un atacante remoto obtiene una cuenta de administrador, puede entonces explotar la vulnerabilidad para comprometer la seguridad del sistema. Ya hemos corregido la vulnerabilidad en las siguientes versiones: QTS 5.2.9.3410 build 20260214 y posteriores QuTS hero h5.2.9.3410 build 20260214 y posteriores QuTS hero h5.3.4.3500 build 20260520 y posteriores QuTS hero h6.0.0.3397 build 20260206 y posteriores

17 Jun 2026, 09:56

Type Values Removed Values Added
References () https://www.qnap.com/en/security-advisory/qsa-26-10 - Vendor Advisory, Broken Link () https://www.qnap.com/en/security-advisory/qsa-26-10 - Broken Link, Vendor Advisory

15 Jun 2026, 18:32

Type Values Removed Values Added
References () https://www.qnap.com/en/security-advisory/qsa-26-10 - () https://www.qnap.com/en/security-advisory/qsa-26-10 - Vendor Advisory, Broken Link
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.2
First Time Qnap quts Hero
Qnap qts
Qnap
CPE cpe:2.3:o:qnap:quts_hero:*:*:*:*:*:*:*:*
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*

10 Jun 2026, 04:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-06-10 04:17

Updated : 2026-07-23 09:10


NVD link : CVE-2025-66280

Mitre link : CVE-2025-66280

CVE.ORG link : CVE-2025-66280


JSON object : View

Products Affected

qnap

  • qts
  • quts_hero
CWE
CWE-121

Stack-based Buffer Overflow

CWE-190

Integer Overflow or Wraparound