PT-2025-54291 · Qno Technology · Qno Technology Vpn Firewall

Li-Fan Cheng + 2 · Published 2025-12-31 · Updated 2026-01-05 · CVE-2025-15387

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions QNO Technology VPN Firewall (affected versions not specified)

Description The VPN Firewall developed by QNO Technology contains an insufficient entropy issue. This allows unauthenticated remote attackers to obtain any logged-in user session through brute-force attacks and subsequently log into the system. The vulnerability allows attackers to gain access by guessing session identifiers.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Weakness Enumeration

CWE-331

Related Identifiers

CVE-2025-15387

Affected Products

Qno Technology Vpn Firewall

References · 9

• https://nvd.nist.gov/vuln/detail/CVE-2025-15387 · Security Note
• https://t.me/cveNotify/147303 · Telegram Post
• https://twcert.org.tw/tw/cp-132-10613-e1780-1.html · Note
• https://twcert.org.tw/en/cp-139-10614-dee41-2.html · Note
• https://twitter.com/RedPacketSec/status/2006521551781322761 · Twitter Post
• https://t.me/CVEtracker/41052 · Telegram Post
• https://twitter.com/CVEnew/status/2006332189429092692 · Twitter Post
• https://twitter.com/cracbot/status/2008131423505621099 · Twitter Post
• https://twitter.com/VulmonFeeds/status/2006348508811379107 · Twitter Post