CVE-2022-31814
CRITICALCVSS 9.8/10EPSS 86.45%
Last modified
CVE-2022-31814 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. pfSense pfBlockerNG through 2.1.4_26 allows remote attackers to execute arbitrary OS commands as root via shell metacharacters in the HTTP Host header. NOTE: 3.x is unaffected.. EPSS estimates a 86.45% chance of exploitation in the next 30 days.
Description
pfSense pfBlockerNG through 2.1.4_26 allows remote attackers to execute arbitrary OS commands as root via shell metacharacters in the HTTP Host header. NOTE: 3.x is unaffected.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Netgate | Pfblockerng | <= 2.1.4_26 |
References
- http://packetstormsecurity.com/files/168743/pfSense-pfBlockerNG-2.1.4_26-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
- https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.htmlRelease Notes, Vendor Advisory
- https://www.ihteam.net/advisory/pfblockerng-unauth-rce-vulnerability/Exploit, Technical Description, Third Party Advisory
- http://packetstormsecurity.com/files/168743/pfSense-pfBlockerNG-2.1.4_26-Shell-Upload.htmlExploit, Third Party Advisory, VDB Entry
- https://docs.netgate.com/pfsense/en/latest/packages/pfblocker.htmlRelease Notes, Vendor Advisory
- https://www.ihteam.net/advisory/pfblockerng-unauth-rce-vulnerability/Exploit, Technical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-31814?
pfSense pfBlockerNG through 2.1.4_26 allows remote attackers to execute arbitrary OS commands as root via shell metacharacters in the HTTP Host header. NOTE: 3.x is unaffected.
How severe is CVE-2022-31814?
CVE-2022-31814 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 86.45% probability of exploitation in the next 30 days.
How do I fix CVE-2022-31814?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2022-31814?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST