{"containers": {"cna": {"affected": [{"product": "Junos OS Evolved", "vendor": "Juniper Networks", "versions": [{"lessThan": "unspecified", "status": "affected", "version": "19.1R1-EVO", "versionType": "custom"}, {"lessThan": "20.3R1-S2-EVO, 20.3R2-EVO", "status": "affected", "version": "20.3-EVO", "versionType": "custom"}]}], "configurations": [{"lang": "en", "value": "The examples of the config stanza affected by this issue:\n\n [firewall policer]\n [firewall filter]"}], "datePublic": "2021-04-14T00:00:00", "descriptions": [{"lang": "en", "value": "An Improper Check for Unusual or Exceptional Conditions in Juniper Networks Junos OS Evolved may cause the stateless firewall filter configuration which uses the action 'policer' in certain combinations with other options to not take effect. An administrator can use the following CLI command to see the failures with filter configuration: user@device> show log kfirewall-agent.log | match ERROR Jul 23 14:16:03 ERROR: filter not supported This issue affects Juniper Networks Junos OS Evolved: Versions 19.1R1-EVO and above prior to 20.3R1-S2-EVO, 20.3R2-EVO. 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