VDB-165223 · CVE-2020-4004 · VMSA-2020-0026

VMware ESXi/Workstation/Fusion XHCI USB Controller use after free

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.3	$0-$5k	0.00

Summaryinfo

A vulnerability identified as critical has been detected in VMware ESXi, Workstation and Fusion. This vulnerability affects unknown code of the component XHCI USB Controller. This manipulation causes use after free. This vulnerability appears as CVE-2020-4004. The attack requires local access. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in VMware ESXi, Workstation and Fusion (Virtualization Software) (affected version not known). Affected by this vulnerability is some unknown functionality of the component XHCI USB Controller. The manipulation with an unknown input leads to a use after free vulnerability. The CWE definition for the vulnerability is CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 11/21/2020 as VMSA-2020-0026. It is possible to read the advisory at vmware.com. This vulnerability is known as CVE-2020-4004. The technical details are unknown and an exploit is not publicly available.

Upgrading eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Virtualization Software

Vendor

VMware

Name

License

commercial

Website

Vendor: https://www.vmware.com/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.3

VulDB Base Score: 6.7
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.2
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/30/2019 🔍
11/21/2020 +327 days 🔍
11/21/2020 +0 days 🔍
10/31/2025 +1805 days 🔍

Sourcesinfo

Vendor: vmware.com

Advisory: VMSA-2020-0026
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2020-4004 (🔍)
GCVE (CVE): GCVE-0-2020-4004
GCVE (VulDB): GCVE-100-165223
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 11/21/2020 07:25
Updated: 10/31/2025 13:04
Changes: 11/21/2020 07:25 (38), 12/09/2020 18:31 (6), 12/09/2020 18:37 (18), 10/31/2025 13:04 (16)
Complete: 🔍
Cache ID: 216::103