Out-of-Bounds Write Vulnerability Affects QNAP NAS Operating Systems
CVE-2025-30273

7.1HIGH

Key Information:

Vendor

QNAP
Status
Qts
Quts Hero
Vendor
CVE Published:
29 August 2025

What is CVE-2025-30273?

An out-of-bounds write vulnerability has been identified in QNAP NAS operating systems, potentially allowing remote attackers with user accounts to exploit the flaw. By leveraging this weakness, malicious actors can modify or corrupt system memory, leading to severe consequences for device integrity and user data security. QNAP has addressed this vulnerability in specific updates: QTS 5.2.5.3145 build 20250526 and later, as well as QuTS hero h5.2.5.3138 build 20250519 and subsequent versions.

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Affected Version(s)

QTS 5.2.x < 5.2.5.3145 build 20250526

QuTS hero h5.2.x

References

https://www.qnap.com/en/security-advisory/qsa-25-21

CVSS V4

Score:
7.1
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
JSON
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