CVE-2022-40624

VendorpfsenseProductpfblockerngDiscoveredDec 20, 2022UpdatedApr 17, 2025

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.

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CVSS v3.1

9.8 CRITICAL

EPSS

18.3%

probability of exploitation in 30 days

CISA KEV

Not listed

no confirmed exploitation reported

News coverage

sources referencing this CVE

Related IOCs

seen in the same coverage

EPSS Trend

Aug 16, 2026 → Oct 22, 2026

▲ 1.14pp

17.1% → 18.3% over 3 tracked changes

CVSS v3.1 Detail

Attack VectorNETWORK

Attack ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

ScopeUNCHANGED

ConfidentialityHIGH

IntegrityHIGH

AvailabilityHIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Connections

2 relationships

CWE-78

source

Timeline

disclosure → media coverage

Dec 20, 2022

Disclosure — published as a CVE record. · last revised by NVD Apr 17, 2025

Public PoC (2)

github.com/dhammon/pfBlockerNg-CVE-2022-40624 github.com/krevetkqqq/CVE-2022-40624

Unverified third-party code — review before executing.