{"id":"CVE-2018-20798","aliases":["EUVD-2018-13341","GHSA-pjhq-f4xq-m288"],"status":"published","title":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are...","description":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for attackers to bypass intended access restrictions.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01424,"percentile":0.73071,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-732"],"published":"2019-03-01T15:00:00Z","modified":"2026-06-17T01:53:29Z","products":[{"vendor":"netgate","product":"pfsense"}],"references":[{"url":"https://redmine.pfsense.org/issues/9223","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-20798"},{"url":"https://github.com/advisories/GHSA-pjhq-f4xq-m288"}],"sources":{"cve":[{"id":"CVE-2018-20798","description":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for attackers to bypass intended access restrictions.","status":"published","published":"2019-03-01T15:00:00Z","modified":"2024-08-05T12:12:27.369Z","updated_at":"2026-11-02T14:34:59.872731Z"}],"euvd":[{"id":"EUVD-2018-13341","description":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for attackers to bypass intended access restrictions.","status":"published","published":"2019-03-01T15:00:00Z","modified":"2024-08-05T12:12:27Z","updated_at":"2026-11-03T02:39:29.769885Z"}],"ghsa":[{"id":"GHSA-pjhq-f4xq-m288","title":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are...","description":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for attackers to bypass intended access restrictions.","status":"published","published":"2022-05-13T01:19:57Z","modified":"2023-02-01T05:06:14Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:50:19.669171Z"}],"nvd":[{"id":"CVE-2018-20798","description":"The expiretable configuration in pfSense 2.4.4_1 establishes block durations that are incompatible with the block durations implemented by sshguard, which might make it easier for attackers to bypass intended access restrictions.","status":"published","published":"2019-03-01T15:29:00.28Z","modified":"2026-06-17T01:53:29.807Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-732"],"updated_at":"2026-11-02T14:04:54.21788Z"}]}}