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Servers and applications

CVE-2019-16667

diag_command.php in pfSense 2.4.4-p3 allows CSRF via the txtCommand or txtRecallBuffer field, as demonstrated by executing OS commands. This occurs because csrf_callback() produces a "CSRF token expired" error and a Try Again button when a CSRF token is missing.

Severity
High 8.8
Published
26 Sept 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
55% in the next 30 daysHigher than 99% of CVEs. EPSS by FIRST, 10 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
pfSenseServers and applications · cpe:a:netgate:pfsense
  • Version 2.4.4-p3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2019-16667
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2019-16667