Race Condition Vulnerability in QuRouter by QNAP
CVE-2025-68404

4.8MEDIUM

Key Information:

Vendor

QNAP
Status
Qurouter
Vendor
CVE Published:
15 October 2026

What is CVE-2025-68404?

A time-of-check time-of-use (TOCTOU) race condition has been identified in QuRouter, which could be exploited by remote attackers. If successfully leveraged, this vulnerability allows unauthorized access, potentially compromising the integrity and security of the affected system. Users are advised to update to QuRouter version 2.6.4.001 or later to mitigate the risk associated with this security flaw.

Affected Version(s)

QuRouter 2.6.x < 2.6.4.001

References

https://www.qnap.com/en/release-notes/qurouter/overview/2.7
release-notes

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

rewhile test
.