{"cve_id":"CVE-2019-5544","published":"2019-12-06T16:15:11.467000+00:00","last_modified":"2026-06-17T02:37:52.780000+00:00","vuln_status":"Analyzed","description":"OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. VMware has evaluated the severity of this issue to be in the Critical severity range with a maximum CVSSv3 base score of 9.8.","cvss_version":"3.1","cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","base_score":9.8,"base_severity":"CRITICAL","attack_vector":"NETWORK","privileges_req":"NONE","user_interaction":"NONE","scope":"UNCHANGED","impact_c":"HIGH","impact_i":"HIGH","impact_a":"HIGH","cwe_ids":["CWE-787"],"in_kev":true,"kev_date_added":"2021-11-03","kev_ransomware":true,"epss_score":0.98129,"epss_percentile":0.99913,"cap_rule_version":"0.1.1","stage":"INITIAL_ACCESS","req_access":"NONE","req_vector":"NETWORK","req_user_interaction":false,"grant_access":"USER","caps":["CODE_EXEC"],"terminal":false,"cap_confidence":"high","ingested_at":"2026-09-18T09:08:40.157552+00:00","first_seen":"2019-12-06T16:15:11.467000+00:00","kev_first_seen":"2021-11-03T00:00:00+00:00","novelty_score":0.0,"novelty_reasons":[],"novelty_at":null,"vendors":["fedoraproject","openslp","redhat","vmware"],"products":["enterprise_linux_desktop","enterprise_linux_for_ibm_z_systems","enterprise_linux_for_ibm_z_systems_eus","enterprise_linux_for_power_big_endian","enterprise_linux_for_power_big_endian_eus","enterprise_linux_for_power_little_endian","enterprise_linux_for_power_little_endian_eus","enterprise_linux_server","enterprise_linux_server_aus","enterprise_linux_server_eus","enterprise_linux_server_tus","enterprise_linux_workstation","esxi","fedora","horizon_daas","openslp"],"affected":[{"vendor":"fedoraproject","product":"fedora","ranges":["31","30"]},{"vendor":"openslp","product":"openslp","ranges":["≤ 2.0.0"]},{"vendor":"redhat","product":"enterprise_linux_desktop","ranges":["7.0","6.0"]},{"vendor":"redhat","product":"enterprise_linux_for_ibm_z_systems","ranges":["7.0_s390x","6.0_s390x"]},{"vendor":"redhat","product":"enterprise_linux_for_ibm_z_systems_eus","ranges":["7.7_s390x"]},{"vendor":"redhat","product":"enterprise_linux_for_power_big_endian","ranges":["7.0_ppc64","6.0_ppc64"]},{"vendor":"redhat","product":"enterprise_linux_for_power_big_endian_eus","ranges":["7.7_ppc64"]},{"vendor":"redhat","product":"enterprise_linux_for_power_little_endian","ranges":["7.0_ppc64le"]},{"vendor":"redhat","product":"enterprise_linux_for_power_little_endian_eus","ranges":["7.7_ppc64le"]},{"vendor":"redhat","product":"enterprise_linux_server","ranges":["6.0","7.0"]},{"vendor":"redhat","product":"enterprise_linux_server_aus","ranges":["7.7"]},{"vendor":"redhat","product":"enterprise_linux_server_eus","ranges":["7.7"]},{"vendor":"redhat","product":"enterprise_linux_server_tus","ranges":["7.7"]},{"vendor":"redhat","product":"enterprise_linux_workstation","ranges":["6.0","7.0"]},{"vendor":"vmware","product":"esxi","ranges":["6.0","6.7","6.5"]},{"vendor":"vmware","product":"horizon_daas","ranges":["≥ 8.0.0 and < 9.0.0.0"]}]}