CVE-2018-20799: netgate pfsense
Vulnerability summary
CVE-2018-20799 is a high (CVSS 7.5) vulnerability in netgate pfsense. EPSS estimates a 1.59% chance of exploitation in the next 30 days, higher than 75.2% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 01-03-2019PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.59%
Chance of exploitation in the next 30 days
Percentile
75%
Versus all other CVEs
30-day change
0.00 pp
From 1.59% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (redmine.pfsense.org)
Maturity: unknown
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Netgate1 product
- pfsense2.4.4:p1
1 vendor · 1 product