{"cve":{"cve_id":"CVE-2019-5544","is_kev":true,"kev_date_added":"2021-11-03","kev_vendor_project":"VMware","kev_product":"VMware ESXi and Horizon DaaS","kev_vulnerability_name":"VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability","kev_short_description":"VMware ESXi and Horizon Desktop as a Service (DaaS) OpenSLP contains a heap-based buffer overflow vulnerability that allows an attacker with network access to port 427 to overwrite the heap of the OpenSLP service to perform remote code execution.","kev_required_action":"Apply updates per vendor instructions.","kev_due_date":"2022-05-03","kev_known_ransomware":true,"kev_notes":"https://nvd.nist.gov/vuln/detail/CVE-2019-5544","kev_cwes":["CWE-787"],"epss_score":0.96823,"epss_percentile":0.9988,"epss_as_of":"2026-06-23","description":"OpenSLP as used in ESXi and the Horizon DaaS appliances has a heap overwrite issue. 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