High severity · published Oct 15, 2026
CVE-2025-68404
vcs_pentest Race Condition Authentication Bypass Vulnerability in QuRouter management interface
7.5
CVSS
0.2%
EPSS
No
On KEV
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
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
QU
QuRouter · QNAP Systems Inc.
2.6.x before 2.6.4.001 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68404
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-68404
www.qnap.com
https://www.qnap.com/en/release-notes/qurouter/overview/2.7
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