CVE-2020-3992
VMware ESXi OpenSLP Use-After-Free Vulnerability
CVSS
—
No CVSS
EPSS
83.0%
p100
KEV
YES
Nov 3, 2021
Exploit Today
80
0-100
Published: — · Last modified: —
83.0%EPSS · 30 days83.0%
2026-06-302026-07-16
Product
VMware / ESXi
Vulnerability
VMware ESXi OpenSLP Use-After-Free Vulnerability
Added to KEV
Nov 3, 2021
Remediate by
May 3, 2022
Known ransomware use
Yes
Summary description
VMware ESXi OpenSLP contains a use-after-free vulnerability that allows an attacker residing in the management network with access to port 427 to perform remote code execution.
Required action
Apply updates per vendor instructions.
Notes
https://nvd.nist.gov/vuln/detail/CVE-2020-3992