VMSA-2020-0018 : VMware ESXi, vCenter Server, and Cloud Foundation updates address a partial denial of service vulnerability

medium Nessus Plugin ID 139849


The remote VMware ESXi host is missing one or more security-related patches.


a. Partial denial of service vulnerability via authentication services (CVE-2020-3976)

VMware ESXi and vCenter Server contain a partial denial of service vulnerability in their respective authentication services. A malicious actor with network access to ESXi or vCenter may be able to exploit this vulnerability to exhaust memory resources resulting in a degradation of performance condition while the attack is sustained.


Apply the missing patches.

See Also


Plugin Details

Severity: Medium

ID: 139849

File Name: vmware_VMSA-2020-0018.nasl

Version: 1.4

Type: local

Published: 8/26/2020

Updated: 9/4/2020

Risk Information


Risk Factor: Low

Score: 1.4


Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Temporal Vector: E:U/RL:OF/RC:C

CVSS Score Source: CVE-2020-3976


Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Temporal Vector: E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:vmware:esxi:6.5, cpe:/o:vmware:esxi:6.7, cpe:/o:vmware:esxi:7.0

Required KB Items: Host/local_checks_enabled, Host/VMware/release, Host/VMware/version

Exploit Ease: No known exploits are available

Patch Publication Date: 8/20/2020

Vulnerability Publication Date: 8/21/2020

Reference Information

CVE: CVE-2020-3976

VMSA: 2020-0018

IAVA: 2020-A-0386