Buffer Overflow Vulnerability in QNAP Operating System
CVE-2025-48725

0.6LOW

Key Information:

Vendor

QNAP
Status
Quts Hero
Vendor
CVE Published:
11 February 2026

What is CVE-2025-48725?

A buffer overflow vulnerability has been identified in various versions of the QNAP operating system. This flaw allows an attacker with a user account to potentially exploit the system, leading to unauthorized memory manipulation or process crashes. QNAP has addressed this issue in the updated version h5.3.2.3354 build 20251225 and encourages users to upgrade their systems to mitigate potential risks.

Affected Version(s)

QuTS hero h5.3.x

References

https://www.qnap.com/en/security-advisory/qsa-26-08

CVSS V4

Score:
0.6
Severity:
LOW
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

coral
.