Out-of-Bounds Read Vulnerability in QNAP Operating System
CVE-2025-54165

4.6MEDIUM

Key Information:

Vendor

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

What is CVE-2025-54165?

A significant out-of-bounds read vulnerability has been identified in specific versions of the QNAP operating system. If exploited by a remote attacker with administrator access, this vulnerability could allow the retrieval of sensitive information, posing a serious risk to data integrity and security. It is crucial for users to update their systems to protected versions to mitigate this threat.

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:
4.6
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
.