An insufficient entropy vulnerability has been reported to affect QNAP operating systems. If exploited, the vulnerability possibly allows remote users to predict secret via unspecified vectors.

We have already fixed the vulnerability in the following versions:
QTS 5.0.1.2425 build 20230609 and later
QTS 5.1.0.2444 build 20230629 and later
QuTS hero h5.1.0.2424 build 20230609 and later

References

• https://nvd.nist.gov/vuln/detail/CVE-2023-34973
• https://www.qnap.com/en/security-advisory/qsa-23-59