Critical severity9.8NVD Advisory· Published Sep 5, 2022· Updated Jun 17, 2026
CVE-2022-31814
CVE-2022-31814
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- pfSense/pfBlockerNGdescription
- Range: <=2.1.4_26
Patches
Vulnerability mechanics
References
6- packetstormsecurity.com/files/168743/pfSense-pfBlockerNG-2.1.4_26-Shell-Upload.htmlnvdExploitThird Party AdvisoryVDB Entry
- www.ihteam.net/advisory/pfblockerng-unauth-rce-vulnerability/nvdExploitTechnical DescriptionThird Party Advisory
- docs.netgate.com/pfsense/en/latest/packages/pfblocker.htmlnvdRelease NotesVendor Advisory
- packetstormsecurity.com/files/171123/pfBlockerNG-2.1.4_26-Remote-Code-Execution.htmlnvd
- github.com/pfsense/FreeBSD-ports/pull/1169nvd
- github.com/pfsense/FreeBSD-ports/pull/1169/commits/071bdcf2d918c3e51cde11cf81fbd9b6f0379d7envd
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