What is CVE-2025-15387?

CVE-2025-15387 is a high-severity vulnerability in Qno Technology Vpn Firewall, classified under Insufficient Entropy. CVSS score: 8.8/10. Published 2025-12-31.

How severe is CVE-2025-15387?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Qno Technology Vpn Firewall

CVE-2025-15387

VPN Firewall developed by QNO Technology has a Insufficient Entropy vulnerability, allowing unauthenticated remote attackers to obtain any logged-in user session through brute-force attacks and subsequently log into the system.

EPSS: 0.003 (23.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Qno Technology Vpn Firewall — versions 0

Weakness classification (CWE)

CWE-331 — Insufficient Entropy

References

twcert@cert.org.tw (third-party-advisory)
twcert@cert.org.tw (third-party-advisory)

Frequently asked questions

What is CVE-2025-15387?: CVE-2025-15387 is a high-severity vulnerability in Qno Technology Vpn Firewall, classified under Insufficient Entropy. CVSS score: 8.8/10. Published 2025-12-31.
How severe is CVE-2025-15387?: High severity. CVSS v3 base score is 8.8 out of 10.