Vulnerability · Published Dec 31, 2025 · Assigned by twcert
CVE-2025-15387QNO Technology｜VPN Firewall - Insufficient Entropy
High 8.8
In plain English
A high-severity security flaw in VPN Firewall from QNO Technology. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.4%top 69.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| QNO Technology | VPN Firewall | 0 |
Weakness: CWE-331 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- https://www.twcert.org.tw/tw/cp-132-10613-e1780-1.html third-party-advisory
- https://www.twcert.org.tw/en/cp-139-10614-dee41-2.html third-party-advisory