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Servers and applications

CVE-2018-20799

In pfSense 2.4.4_1, blocking of source IP addresses on the basis of failed HTTPS authentication is inconsistent with blocking of source IP addresses on the basis of failed SSH authentication (the behavior does not match the sshguard documentation), which might make it easier for attackers to bypass intended access restrictions.

Severity
High 7.5
Published
1 Mar 2019
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.6% in the next 30 daysHigher than 75% 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-p1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-20799
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-20799