Opnsense
Products
2- 38 CVEs
- 4 CVEs
Recent CVEs
38| CVE | Vendor / Product | Sev | Risk | CVSS | EPSS | KEV | Published | Description |
|---|---|---|---|---|---|---|---|---|
| CVE-2026-45158 | Cri | 0.52 | 9.1 | 0.01 | May 13, 2026 | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, unsanitized user input is passed to the DHCP configuration of the configured interface, which is processed by a shell script, allowing remote code execution as root on the underlying operating system.… | ||
| CVE-2026-44194 | Cri | 0.52 | 9.1 | 0.06 | May 13, 2026 | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, an authenticated Remote Code Execution (RCE) vulnerability in the OPNsense core allows a user with user-management privileges to execute arbitrary system commands as root. An attacker can bypass input… | ||
| CVE-2026-44193 | Cri | 0.52 | 9.1 | 0.01 | May 13, 2026 | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, the XMLRPC method opnsense.restore_config_section fails to sanitize user supplied input leading to Remote Code Execution. This vulnerability is fixed in 26.1.7. | ||
| CVE-2026-34578 | Hig | 0.46 | 8.2 | 0.00 | Apr 9, 2026 | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldap_escape(). An unauthenticated attacker can inject LDAP filter metacharacters… | ||
| CVE-2026-2035 | Med | 0.37 | 6.8 | 0.02 | Feb 20, 2026 | Deciso OPNsense diag_backup.php filename Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. … | ||
| CVE-2025-34182 | Med | 0.33 | — | 0.00 | Oct 1, 2025 | In Deciso OPNsense before 25.7.4, when creating an "Interfaces: Devices: Point-to-Point" entry, the value of the parameter ptpid is not sanitized of HTML-related characters/strings. This value is directly displayed when visiting the page/interfaces_assign.php, which can result… | ||
| CVE-2026-44195 | Med | 0.27 | 5.3 | 0.00 | May 13, 2026 | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to continuously reset the authentication failure counter for their IP address. By interjecting a crafted username… | ||
| CVE-2025-13698 | Med | 0.22 | 4.5 | 0.00 | Dec 23, 2025 | Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this… | ||
| CVE-2017-1000479 | Hig | 0.06 | 8.8 | 0.33 | Jan 3, 2018 | pfSense versions 2.4.1 and lower are vulnerable to clickjacking attacks in the CSRF error page resulting in privileged execution of arbitrary code, because the error detection occurs before an X-Frame-Options header is set. This is fixed in 2.4.2-RELEASE. OPNsense, a 2015 fork… | ||
| CVE-2020-23015 | 0.01 | — | 0.03 | May 3, 2021 | An open redirect issue was discovered in OPNsense through 20.1.5. The redirect parameter "url" in login page was not filtered and can redirect user to any website. | |||
| CVE-2026-30868 | 0.00 | — | 0.00 | Mar 11, 2026 | OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.4, multiple OPNsense MVC API endpoints perform state‑changing operations but are accessible via HTTP GET requests without CSRF protection. The framework CSRF validation in ApiControllerBase only applies… | |||
| CVE-2019-25377 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject malicious scripts via the value parameter. Attackers can craft POST requests with script payloads in the value parameter to execute… | |||
| CVE-2019-25376 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted payloads through the ignoreLogACL parameter. Attackers can send POST requests to the proxy endpoint with JavaScript code… | |||
| CVE-2019-25375 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the mailserver parameter. Attackers can send POST requests to the monit interface with JavaScript payloads in… | |||
| CVE-2019-25374 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting the passthrough_networks parameter in vpn_ipsec_settings.php. Attackers can craft POST requests with JavaScript payloads in the… | |||
| CVE-2019-25373 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the category parameter. Attackers can send POST requests to firewall_rules_edit.php with script payloads in the… | |||
| CVE-2019-25372 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted payloads through POST requests to… | |||
| CVE-2019-25371 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted POST requests to the diag_ping.php endpoint… | |||
| CVE-2019-25370 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input through multiple parameters. Attackers can send POST requests to interfaces_vlan_edit.php with script payloads in the tag, descr,… | |||
| CVE-2019-25369 | 0.00 | — | 0.00 | Feb 15, 2026 | OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter. Attackers can submit POST requests with script payloads that are stored and… |
- risk 0.52cvss 9.1epss 0.01
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, unsanitized user input is passed to the DHCP configuration of the configured interface, which is processed by a shell script, allowing remote code execution as root on the underlying operating system.…
- risk 0.52cvss 9.1epss 0.06
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.8, an authenticated Remote Code Execution (RCE) vulnerability in the OPNsense core allows a user with user-management privileges to execute arbitrary system commands as root. An attacker can bypass input…
- risk 0.52cvss 9.1epss 0.01
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, the XMLRPC method opnsense.restore_config_section fails to sanitize user supplied input leading to Remote Code Execution. This vulnerability is fixed in 26.1.7.
- risk 0.46cvss 8.2epss 0.00
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.6, OPNsense's LDAP authentication connector passes the login username directly into an LDAP search filter without calling ldap_escape(). An unauthenticated attacker can inject LDAP filter metacharacters…
- risk 0.37cvss 6.8epss 0.02
Deciso OPNsense diag_backup.php filename Command Injection Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Deciso OPNsense. Authentication is required to exploit this vulnerability. …
- risk 0.33cvss —epss 0.00
In Deciso OPNsense before 25.7.4, when creating an "Interfaces: Devices: Point-to-Point" entry, the value of the parameter ptpid is not sanitized of HTML-related characters/strings. This value is directly displayed when visiting the page/interfaces_assign.php, which can result…
- risk 0.27cvss 5.3epss 0.00
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to continuously reset the authentication failure counter for their IP address. By interjecting a crafted username…
- risk 0.22cvss 4.5epss 0.00
Deciso OPNsense diag_backup.php filename Directory Traversal Arbitrary File Creation Vulnerability. This vulnerability allows network-adjacent attackers to create arbitrary files on affected installations of Deciso OPNsense. Authentication is required to exploit this…
- risk 0.06cvss 8.8epss 0.33
pfSense versions 2.4.1 and lower are vulnerable to clickjacking attacks in the CSRF error page resulting in privileged execution of arbitrary code, because the error detection occurs before an X-Frame-Options header is set. This is fixed in 2.4.2-RELEASE. OPNsense, a 2015 fork…
- CVE-2020-23015May 3, 2021risk 0.01cvss —epss 0.03
An open redirect issue was discovered in OPNsense through 20.1.5. The redirect parameter "url" in login page was not filtered and can redirect user to any website.
- CVE-2026-30868Mar 11, 2026risk 0.00cvss —epss 0.00
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.4, multiple OPNsense MVC API endpoints perform state‑changing operations but are accessible via HTTP GET requests without CSRF protection. The framework CSRF validation in ApiControllerBase only applies…
- CVE-2019-25377Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject malicious scripts via the value parameter. Attackers can craft POST requests with script payloads in the value parameter to execute…
- CVE-2019-25376Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted payloads through the ignoreLogACL parameter. Attackers can send POST requests to the proxy endpoint with JavaScript code…
- CVE-2019-25375Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by submitting crafted input to the mailserver parameter. Attackers can send POST requests to the monit interface with JavaScript payloads in…
- CVE-2019-25374Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by exploiting the passthrough_networks parameter in vpn_ipsec_settings.php. Attackers can craft POST requests with JavaScript payloads in the…
- CVE-2019-25373Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious scripts by submitting crafted input to the category parameter. Attackers can send POST requests to firewall_rules_edit.php with script payloads in the…
- CVE-2019-25372Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted payloads through POST requests to…
- CVE-2019-25371Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows unauthenticated attackers to inject malicious scripts by exploiting insufficient input validation in the host parameter. Attackers can submit crafted POST requests to the diag_ping.php endpoint…
- CVE-2019-25370Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input through multiple parameters. Attackers can send POST requests to interfaces_vlan_edit.php with script payloads in the tag, descr,…
- CVE-2019-25369Feb 15, 2026risk 0.00cvss —epss 0.00
OPNsense 19.1 contains a stored cross-site scripting vulnerability in the system_advanced_sysctl.php endpoint that allows attackers to inject persistent malicious scripts via the tunable parameter. Attackers can submit POST requests with script payloads that are stored and…