Advisory Details

October 30th, 2025

Netgate pfSense CE Suricata Path Traversal Remote Code Execution Vulnerability

ZDI-25-979
ZDI-CAN-28085

CVE ID CVE-2025-12490
CVSS SCORE 8.8, AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AFFECTED VENDORS Netgate
AFFECTED PRODUCTS pfSense
VULNERABILITY DETAILS

This vulnerability allows remote attackers to create arbitrary files on affected installations of Netgate pfSense. Authentication is required to exploit this vulnerability.

The specific flaw exists within the Suricata package. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to create files in the context of root.
ADDITIONAL DETAILS Netgate has issued an update to correct this vulnerability. More details can be found at:
https://github.com/pfsense/FreeBSD-ports/commit/36b2303dfca35a1183d76f26bcc6ce26d4ea682d
DISCLOSURE TIMELINE
  • 2025-10-15 - Vulnerability reported to vendor
  • 2025-10-30 - Coordinated public release of advisory
  • 2025-10-30 - Advisory Updated
CREDIT Alex Williams from Pellera Technologies
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