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CVE-2019-5544CISA KEV

VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Vulnerability

CISA lists this VMware VMware ESXi and Horizon DaaS vulnerability as known exploited. The vendor's advisory has the fixed versions.

CISA KEVVendor advisoryNVD

CISA catalog record

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.

Product
VMware ESXi and Horizon DaaS
Added to KEV
3 Nov 2021
Federal remediation due
3 May 2022
Known ransomware use
Yes

What changed

First observed 14 Oct 2026

No field changes in the recorded history.

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ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 14 Oct 12:55 UTC · 254 of 255 readable · 253 fully read · documentation 0/409 current

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