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CVE-2025-15387

QNO Technology｜VPN Firewall - Insufficient Entropy

HIGH
8.8
CVSS Score
Published: December 31, 2025 at 08:23 AM UTC
Updated: June 17, 2026 at 08:37 AM UTC
1 product affected across 1 vendorVPN Firewall

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Severity
HIGH8.8
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

VPN Firewall· Qno
60%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Third Party Advisory
Source: cverecord
https://www.twcert.org.tw/tw/cp-132-10613-e1780-1.html
Third Party Advisory
Source: cverecord
https://www.twcert.org.tw/en/cp-139-10614-dee41-2.html

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.8HIGHtwcert
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-331

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