CVE-2025-15387 QNO Technology｜VPN Firewall - Insufficient Entropy
Attackers can brute-force session tokens due to insufficient entropy, allowing them to hijack user sessions and access the VPN Firewall system.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-15387?
CVE-2025-15387 is a high-severity vulnerability in QNO Technology VPN Firewall, published on 31 Dec 2025. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
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.
Weakness: CWE-331
Which versions are affected by CVE-2025-15387?
How do I fix CVE-2025-15387?
No fix has been published for CVE-2025-15387 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-15387 being exploited?
There is no known exploitation of CVE-2025-15387 in the wild and no public exploit code.
Sources
Also known as GHSA-vvhf-47gr-69vm.