Buffer Overflow Vulnerability in QNAP Operating Systems
CVE-2025-52864

1.3LOW

Key Information:

Vendor

QNAP
Status
Qts
Quts Hero
Vendor
CVE Published:
2 January 2026

What is CVE-2025-52864?

A buffer overflow issue has been discovered in multiple versions of QNAP’s operating systems. This vulnerability can be exploited by remote attackers who have access to a user account, enabling them to manipulate memory space or crash system processes. To enhance security, it is essential for users to update to the latest fixed versions of QTS and QuTS hero, which address this issue.

Affected Version(s)

QTS 5.2.x < 5.2.7.3256 build 20250913

QuTS hero h5.2.x

QuTS hero h5.3.x

References

https://www.qnap.com/en/security-advisory/qsa-25-50

CVSS V4

Score:
1.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
.