CVE-2025-15389Network attack vector

Authenticated command execution via undisclosed input handling

Published Dec 31, 2025 · Updated Dec 31, 2025

OS command injection in QNO Technology VPN Firewall allows remote authenticated users to execute arbitrary commands over the network. TWCERT/CC and the CNA record do not disclose the affected request, parameter, or command-building operation that fails to neutralize input. Valid appliance credentials and network access are required; injected commands execute on the firewall server and can read, alter, or interrupt its data and services.

CVSS severity8.8
High
EPSS probability1.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in QNO Technology VPN Firewall allows remote authenticated users to execute arbitrary commands over the network. TWCERT/CC and the CNA record do not disclose the affected request, parameter, or command-building operation that fails to neutralize input. Valid appliance credentials and network access are required; injected commands execute on the firewall server and can read, alter, or interrupt its data and services.

The record

CVE
CVE-2025-15389
Published
Dec 31, 2025
Updated
Dec 31, 2025
Vendor
QNO Technology Inc.
Product
Qno VPN Firewall series
Classifications
CWE-78, CAPEC-88, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 31, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

QNO Technology Inc. · Qno VPN Firewall seriesversion=0

Published CVSS scores

8.7TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC-88OS Command Injection
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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