📦 Opnsense

by Opnsense

🔍 What is Opnsense?

Description coming soon...

🛡️ Security Overview

Click on a severity to filter vulnerabilities

⚠️ Known Vulnerabilities

CVE-2025-50989

CRITICAL CVSS 9.1 Aug 27, 2025

CVE-2025-50989 is an authenticated command injection vulnerability in OPNsense firewall software that allows administrators to execute arbitrary system commands via the Bridge Interface Edit endpoint....

CVE-2023-27152

CRITICAL CVSS 9.8 Oct 23, 2023

CVE-2023-27152 is an authentication bypass vulnerability in DECISO OPNsense firewall software that allows attackers to perform unlimited brute-force login attempts. This affects OPNsense 23.1 installa...

CVE-2023-39004

CRITICAL CVSS 9.8 Aug 9, 2023

This vulnerability allows attackers to access sensitive configuration files in OPNsense firewalls due to insecure directory permissions. Attackers can read hashed root passwords and other sensitive da...

CVE-2023-39007

CRITICAL CVSS 9.6 Aug 9, 2023

This vulnerability allows cross-site scripting (XSS) attacks in OPNsense firewall management interfaces. Attackers can inject malicious scripts via the cron job configuration interface, potentially co...

CVE-2023-39001

CRITICAL CVSS 9.8 Aug 9, 2023

This CVE describes a command injection vulnerability in OPNsense's diag_backup.php component that allows attackers to execute arbitrary commands by uploading a malicious backup configuration file. Att...

CVE-2023-38997

HIGH CVSS 7.2 Aug 9, 2023

A directory traversal vulnerability in OPNsense's Captive Portal templates allows attackers to upload crafted ZIP archives that can execute arbitrary system commands as root. This affects OPNsense Com...

CVE-2023-39003

HIGH CVSS 7.5 Aug 9, 2023

This CVE involves insecure permissions in the /tmp directory of OPNsense firewall appliances, allowing local attackers to potentially escalate privileges or execute arbitrary code. It affects OPNsense...

CVE-2019-25373

MEDIUM CVSS 6.4 Feb 15, 2026

This stored cross-site scripting vulnerability in OPNsense 19.1 allows authenticated attackers to inject malicious JavaScript into firewall rule pages. When other users view these pages, the attacker'...

CVE-2019-25375

MEDIUM CVSS 6.1 Feb 15, 2026

CVE-2019-25375 is a reflected cross-site scripting vulnerability in OPNsense 19.1 that allows unauthenticated attackers to inject malicious JavaScript via the mailserver parameter in POST requests to ...

CVE-2019-25377

MEDIUM CVSS 5.4 Feb 15, 2026

This CVE describes a reflected cross-site scripting (XSS) vulnerability in OPNsense 19.1's system_advanced_sysctl.php endpoint. Attackers can inject malicious scripts via the value parameter in POST r...

CVE-2019-25369

MEDIUM CVSS 6.4 Feb 15, 2026

CVE-2019-25369 is a stored cross-site scripting (XSS) vulnerability in OPNsense 19.1 that allows attackers to inject persistent malicious scripts via the system_advanced_sysctl.php endpoint. When auth...

CVE-2019-25371

MEDIUM CVSS 6.1 Feb 15, 2026

CVE-2019-25371 is a reflected cross-site scripting vulnerability in OPNsense 19.1 that allows unauthenticated attackers to inject malicious JavaScript via the host parameter in diag_ping.php. This ena...