CVE-2022-40624
pfSense pfBlockerNG through 2.1.4_27 allows remote attackers to execute arbitrary OS commands as...
CVE-2022-40624 is a critical vulnerability (CVSS 9.8) in Pfsense Pfblockerng, published December 20, 2022. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 18.2%, the 97th percentile. No source names a fixed version.
- Severity
- 9.8 CriticalCVSS 3.1, NVD
- Exploit chance
- 18.2%EPSS, 97th percentile
- Exploitation
- None known3 public exploits
- Fixed in
- No fix listedNo source names one
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| Nuclei | pfSense pfBlockerNG - OS Command Injection | |
| PoC in GitHub | dhammon/pfBlockerNg-CVE-2022-40624 | 2022-09-15 |
| PoC in GitHub | krevetkqqq/CVE-2022-40624 | 2026-10-30 |
What each source reports
NVD Score used
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.
- Record
CVE-2022-40624- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
CVE List
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.
- Record
CVE-2022-40624- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
EUVDEUVD-2022-43898
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.
- Record
EUVD-2022-43898- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-crg2-7qxv-74jh
pfSense pfBlockerNG through 2.1.4_27 allows remote attackers to execute arbitrary OS commands as...
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.
- Record
GHSA-crg2-7qxv-74jh- CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-78
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, Nuclei, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.