CVE-2025-68404: CWE-367 in QNAP Systems Inc. QuRouter
Description
A time-of-check time-of-use (toctou) race condition vulnerability has been reported to affect QuRouter. If exploited, the vulnerability could allow remote attackers to compromise the security of the system. We have already fixed the vulnerability in the following version: QuRouter 2.6.4.001 and later
CVSS v4.0
Score 7.5high
Affected software
QNAP Systems Inc.
QuRouter
pkg:github/qnap/qurouterRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a TOCTOU race condition in QNAP QuRouter that could be exploited remotely to compromise system security. The issue has been addressed and fixed in version 2.6.4.001. The affected versions are those starting from 2.6.0 up to but excluding 2.6.4.001. The CVSS 4.0 vector indicates the attack requires adjacent network access, low attack complexity, partial user interaction, no privileges required, and results in high confidentiality, integrity, and availability impacts.
Potential Impact
If exploited, remote attackers could compromise the security of the affected QuRouter system, potentially impacting confidentiality, integrity, and availability. The vulnerability is rated medium severity with a CVSS score of 4.8.
Mitigation Recommendations
Upgrade QuRouter to version 2.6.4.001 or later to remediate this vulnerability. The vendor has provided an official fix in this version. No additional mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- qnap
- Date Reserved
- 2025-12-17T06:09:14.321Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad07e6f2cdf04f65612bc12
Added to database: 10/15/2026, 07:19:11 UTC
Last enriched: 10/15/2026, 07:33:58 UTC
Last updated: 10/15/2026, 19:04:20 UTC
Views: 18
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