pfsense CVE Vulnerabilities & Metrics

Focus on pfsense vulnerabilities and metrics.

Last updated: 08 Mar 2025, 23:25 UTC

About pfsense Security Exposure

This page consolidates all known Common Vulnerabilities and Exposures (CVEs) associated with pfsense. We track both calendar-based metrics (using fixed periods) and rolling metrics (using gliding windows) to give you a comprehensive view of security trends and risk evolution. Use these insights to assess risk and plan your patching strategy.

For a broader perspective on cybersecurity threats, explore the comprehensive list of CVEs by vendor and product. Stay updated on critical vulnerabilities affecting major software and hardware providers.

Global CVE Overview

Total pfsense CVEs: 13
Earliest CVE date: 03 Jan 2012, 19:55 UTC
Latest CVE date: 09 Nov 2023, 22:15 UTC

Latest CVE reference: CVE-2023-29975

Rolling Stats

30-day Count (Rolling): 0
365-day Count (Rolling): 0

Calendar-based Variation

Calendar-based Variation compares a fixed calendar period (e.g., this month versus the same month last year), while Rolling Growth Rate uses a continuous window (e.g., last 30 days versus the previous 30 days) to capture trends independent of calendar boundaries.

Variations & Growth

Month Variation (Calendar): 0%
Year Variation (Calendar): -100.0%

Month Growth Rate (30-day Rolling): 0.0%
Year Growth Rate (365-day Rolling): -100.0%

Monthly CVE Trends (current vs previous Year)

Annual CVE Trends (Last 20 Years)

Critical pfsense CVEs (CVSS ≥ 9) Over 20 Years

CVSS Stats

Average CVSS: 3.71

Max CVSS: 9.0

Critical CVEs (≥9): 2

CVSS Range vs. Count

Range Count
0.0-3.9 7
4.0-6.9 9
7.0-8.9 1
9.0-10.0 2

CVSS Distribution Chart

Top 5 Highest CVSS pfsense CVEs

These are the five CVEs with the highest CVSS scores for pfsense, sorted by severity first and recency.

All CVEs for pfsense

CVE-2023-29975 pfsense vulnerability CVSS: 0 09 Nov 2023, 22:15 UTC

An issue discovered in Pfsense CE version 2.6.0 allows attackers to change the password of any user without verification.

CVE-2023-29974 pfsense vulnerability CVSS: 0 08 Nov 2023, 21:15 UTC

An issue discovered in Pfsense CE version 2.6.0 allows attackers to compromise user accounts via weak password requirements.

CVE-2023-29973 pfsense vulnerability CVSS: 0 25 Oct 2023, 18:17 UTC

Pfsense CE version 2.6.0 is vulnerable to No rate limit which can lead to an attacker creating multiple malicious users in firewall.

CVE-2020-19678 pfsense vulnerability CVSS: 0 06 Apr 2023, 18:15 UTC

Directory Traversal vulnerability found in Pfsense v.2.1.3 and Pfsense Suricata v.1.4.6 pkg v.1.0.1 allows a remote attacker to obtain sensitive information via the file parameter to suricata/suricata_logs_browser.php.

CVE-2023-27100 pfsense vulnerability CVSS: 0 22 Mar 2023, 23:15 UTC

Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests.

CVE-2022-42247 pfsense vulnerability CVSS: 0 03 Oct 2022, 16:15 UTC

pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. This vulnerability allows attackers to execute arbitrary web scripts or HTML via a crafted payload injected into a file name.

CVE-2021-20729 pfsense vulnerability CVSS: 4.3 31 Mar 2022, 08:15 UTC

Cross-site scripting vulnerability in pfSense CE and pfSense Plus (pfSense CE software versions 2.5.2 and earlier, and pfSense Plus software versions 21.05 and earlier) allows a remote attacker to inject an arbitrary script via a malicious URL.

CVE-2022-21132 pfsense vulnerability CVSS: 4.0 10 Mar 2022, 17:45 UTC

Directory traversal vulnerability in pfSense-pkg-WireGuard pfSense-pkg-WireGuard 0.1.5 versions prior to 0.1.5_4 and pfSense-pkg-WireGuard 0.1.6 versions prior to 0.1.6_1 allows a remote authenticated attacker to lead a pfSense user to view a file outside the public folder.

CVE-2021-41282 pfsense vulnerability CVSS: 9.0 01 Mar 2022, 23:15 UTC

diag_routes.php in pfSense 2.5.2 allows sed data injection. Authenticated users are intended to be able to view data about the routes set in the firewall. The data is retrieved by executing the netstat utility, and then its output is parsed via the sed utility. Although the common protection mechanisms against command injection (i.e., the usage of the escapeshellarg function for the arguments) are used, it is still possible to inject sed-specific code and write an arbitrary file in an arbitrary location.

CVE-2022-23993 pfsense vulnerability CVSS: 4.3 26 Jan 2022, 19:15 UTC

/usr/local/www/pkg.php in pfSense CE before 2.6.0 and pfSense Plus before 22.01 uses $_REQUEST['pkg_filter'] in a PHP echo call, causing XSS.

CVE-2020-26693 pfsense vulnerability CVSS: 3.5 01 Jun 2021, 15:15 UTC

A stored cross-site scripting (XSS) vulnerability was discovered in pfSense 2.4.5-p1 which allows an authenticated attacker to execute arbitrary web scripts via exploitation of the load_balancer_monitor.php function.

CVE-2021-27933 pfsense vulnerability CVSS: 4.3 28 Apr 2021, 07:15 UTC

pfSense 2.5.0 allows XSS via the services_wol_edit.php Description field.

CVE-2016-10709 pfsense vulnerability CVSS: 9.0 22 Jan 2018, 04:29 UTC

pfSense before 2.3 allows remote authenticated users to execute arbitrary OS commands via a '|' character in the status_rrd_graph_img.php graph parameter, related to _rrd_graph_img.php.

CVE-2014-4696 pfsense vulnerability CVSS: 5.8 02 Jul 2014, 10:35 UTC

Multiple open redirect vulnerabilities in the Suricata package before 1.0.6 for pfSense through 2.1.4 allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via (1) the referer parameter to suricata_rules_flowbits.php or (2) the returl parameter to suricata_select_alias.php.

CVE-2014-4695 pfsense vulnerability CVSS: 5.8 02 Jul 2014, 10:35 UTC

Multiple open redirect vulnerabilities in the Snort package before 3.0.13 for pfSense through 2.1.4 allow remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via (1) the referer parameter to snort_rules_flowbits.php or (2) the returl parameter to snort_select_alias.php.

CVE-2014-4694 pfsense vulnerability CVSS: 4.3 02 Jul 2014, 10:35 UTC

Multiple cross-site scripting (XSS) vulnerabilities in suricata_select_alias.php in the Suricata package before 1.0.6 for pfSense through 2.1.4 allow remote attackers to inject arbitrary web script or HTML via unspecified variables.

CVE-2014-4693 pfsense vulnerability CVSS: 4.3 02 Jul 2014, 10:35 UTC

Multiple cross-site scripting (XSS) vulnerabilities in the Snort package before 3.0.13 for pfSense through 2.1.4 allow remote attackers to inject arbitrary web script or HTML via (1) the eng parameter to snort_import_aliases.php or (2) unspecified variables to snort_select_alias.php.

CVE-2011-5047 pfsense vulnerability CVSS: 4.3 03 Jan 2012, 19:55 UTC

Cross-site scripting (XSS) vulnerability in status_rrd_graph.php in pfSense before 2.0.1 allows remote attackers to inject arbitrary web script or HTML via the style parameter.

CVE-2011-4197 pfsense vulnerability CVSS: 7.5 03 Jan 2012, 19:55 UTC

etc/inc/certs.inc in the PKI implementation in pfSense before 2.0.1 creates each X.509 certificate with a true value for the CA basic constraint, which allows remote attackers to create sub-certificates for arbitrary subjects by leveraging the private key.