CVE-2022-40624
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.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 18.3%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 18.25% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- pfsense/pfblockerng
- Source
- cve@mitre.org
EPSS 18.3% since 3 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.htmlVendor Advisory
- https://github.com/dhammon/pfBlockerNg-CVE-2022-40624Exploit, Third Party Advisory
- https://github.com/dhammon/pfBlockerNg-RCEBroken Link
- https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.htmlVendor Advisory
- https://github.com/dhammon/pfBlockerNg-CVE-2022-40624Exploit, Third Party Advisory
- https://github.com/dhammon/pfBlockerNg-RCEBroken Link
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.