CRITICAL CISA KEV

CVE-2020-3992

CVSS v3

9.8

CRITICAL

EPSS Score

82.7%

exploit probability

CISA KEV

Yes

known exploited

Exploitation

SSVC status

Description

OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before ESXi650-202010401-SG) has a use-after-free issue. A malicious actor residing in the management network who has access to port 427 on an ESXi machine may be able to trigger a use-after-free in the OpenSLP service resulting in remote code execution.

CISA Known Exploited Vulnerability

Date Added
11/3/2021
Patch Due Date
5/3/2022
Ransomware Use
Known

Technical details

Published
10/20/2020

Frequently asked questions

What is CVE-2020-3992?

OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before ESXi650-202010401-SG) has a use-after-free issue. A malicious actor residing in the management network who has access to port 427 on an ESXi machine may be able to trigger a use-after-free in the OpenSLP service resulting in remote code execution.

Is CVE-2020-3992 actively exploited?

Yes. CVE-2020-3992 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 5/3/2022.

What is the CVSS score for CVE-2020-3992?

CVE-2020-3992 has a CVSS v3 base score of 9.8 (CRITICAL severity).

Is CVE-2020-3992 affecting your environment?

Use isMalicious to check if any of your IPs or domains are associated with this vulnerability's IOCs.