Is CVE-2022-40624 actively exploited?

No active exploitation of CVE-2022-40624 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2022-40624 be exploited remotely?

Yes. CVE-2022-40624 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2022-40624?

CVE-2022-40624 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2022-40624

CWE-78Published: December 20, 2022· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official 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.

NVD Source

Risk Analysis

A critical command injection flaw in pfSense pfBlockerNG allows remote attackers to execute arbitrary OS commands as root by manipulating the HTTP Host header. This vulnerability poses a severe risk to network security.

No public exploit is known at this time, and it is not in the CISA KEV. The vulnerability is remotely exploitable with low attack complexity.

Recommended Action

Users should update pfBlockerNG to the latest version immediately to remediate the command injection vulnerability.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2022-40624 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.