{"id":"CVE-2018-0026","aliases":["EUVD-2018-0850","GHSA-4438-62q8-6hf2"],"status":"published","title":"Junos OS: Stateless IP firewall filter rules stop working as expected after reboot or upgrade","description":"After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-\u003cinterface_name\u003e This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.","severity":{"version":"3.0","score":4.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.01765,"percentile":0.7821,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2018-07-11T18:00:00Z","modified":"2026-06-17T01:29:25Z","products":[{"vendor":"juniper","product":"junos"},{"vendor":"juniper networks","product":"junos os"}],"references":[{"url":"http://www.securityfocus.com/bid/104720","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://kb.juniper.net/JSA10859","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://www.securitytracker.com/id/1041315","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-0026"},{"url":"https://github.com/advisories/GHSA-4438-62q8-6hf2"}],"sources":{"cve":[{"id":"CVE-2018-0026","title":"Junos OS: Stateless IP firewall filter rules stop working as expected after reboot or upgrade","description":"After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-\u003cinterface_name\u003e This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.","status":"published","published":"2018-07-11T18:00:00Z","modified":"2024-09-16T19:10:58.575Z","cvss":[{"version":"3.0","score":4.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:35:12.596526Z"}],"euvd":[{"id":"EUVD-2018-0850","description":"After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-\u003cinterface_name\u003e This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.","status":"published","published":"2018-07-11T18:00:00Z","modified":"2024-09-16T19:10:58Z","cvss":[{"version":"3.0","score":4.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:55:25.259735Z"}],"ghsa":[{"id":"GHSA-4438-62q8-6hf2","title":"After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take...","description":"After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-\u003cinterface_name\u003e This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.","status":"published","published":"2022-05-13T01:35:59Z","modified":"2023-02-01T05:08:33Z","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"}],"updated_at":"2026-11-02T14:50:47.846536Z"}],"nvd":[{"id":"CVE-2018-0026","description":"After Junos OS device reboot or upgrade, the stateless firewall filter configuration may not take effect. This issue can be verified by running the command: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Note: when the issue occurs, it does not show the applied firewall filter. The correct output should show the applied firewall filter, for example: user@re0\u003e show interfaces \u003cinterface_name\u003e extensive | match filters\" CAM destination filters: 0, CAM source filters: 0 Input Filters: FIREWAL_FILTER_NAME-\u003cinterface_name\u003e This issue affects firewall filters for every address family. Affected releases are Juniper Networks Junos OS: 15.1R4, 15.1R5, 15.1R6 and SRs based on these MRs. 15.1X8 versions prior to 15.1X8.3.","status":"published","published":"2018-07-11T18:29:00.293Z","modified":"2026-06-17T01:29:25.51Z","cvss":[{"version":"3.0","score":4.7,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"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"}],"updated_at":"2026-11-02T14:04:32.929986Z"}]}}