What’s Vulnerable › Vulnerabilities

CVE-2022-40624

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 18.3% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-12-20 · updated 2026-06-17
• Weakness: CWE-78

Description

pfSense pfBlockerNG through 2.1.4_27 allows remote attackers to execute arbitrary OS commands as root via the HTTP Host header, a different vulnerability than CVE-2022-31814.

Affected products

• pfSense Pfblockerng: before 2.1.4_27 — fixed in 2.1.4_27

How to fix

Upgrade to a fixed version: pfSense Pfblockerng 2.1.4_27. Check the vendor advisory for mitigations.

References

• https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.html
• https://github.com/dhammon/pfBlockerNg-CVE-2022-40624
• https://github.com/dhammon/pfBlockerNg-RCE
• https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.html
• https://github.com/dhammon/pfBlockerNg-CVE-2022-40624
• https://github.com/dhammon/pfBlockerNg-RCE

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