CVE-2017-4904

The XHCI controller in VMware ESXi 6.5 without patch ESXi650-201703410-SG, 6.0 U3 without patch ESXi600-201703401-SG, 6.0 U2 without patch ESXi600-201703403-SG, 6.0 U1 without patch ESXi600-201703402-SG, and 5.5 without patch ESXi550-201703401-SG; Workstation Pro / Player 12.x prior to 12.5.5; and Fusion Pro / Fusion 8.x prior to 8.5.6 has uninitialized memory usage. This issue may allow a guest to execute code on the host. The issue is reduced to a Denial of Service of the guest on ESXi 5.5.

Published: 2017-06-07 Last update: 2026-05-13 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2017-4904 is rated Moderate Risk (56.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.40%). Mandatory action: Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2017-4904

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-03-04 0.23% 0.40% +0.17%
2 2026-03-01 0.40% 0.23% -0.17%
3 2026-02-28 0.40%

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-4904

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
2.0 6.0 [email protected]
7.2 2.0 HIGH
AV:L/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
3.9 10.0 [email protected]

Weakness enumeration for CVE-2017-4904

Affected software / configurations for CVE-2017-4904

Vendor Product Version Raw CPE
vmware fusion >= 8.0.0, < 8.5.6 cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*
vmware fusion_pro >= 8.0.0, < 8.5.6 cpe:2.3:a:vmware:fusion_pro:*:*:*:*:*:*:*:*
vmware workstation_player >= 12.0.0, < 12.5.5 cpe:2.3:a:vmware:workstation_player:*:*:*:*:*:*:*:*
vmware workstation_pro >= 12.0.0, < 12.5.5 cpe:2.3:a:vmware:workstation_pro:*:*:*:*:*:*:*:*
vmware esxi 5.5 cpe:2.3:o:vmware:esxi:5.5:-:*:*:*:*:*:*
vmware esxi 5.5 cpe:2.3:o:vmware:esxi:5.5:1:*:*:*:*:*:*
vmware esxi 5.5 cpe:2.3:o:vmware:esxi:5.5:2:*:*:*:*:*:*
vmware esxi 5.5 cpe:2.3:o:vmware:esxi:5.5:3a:*:*:*:*:*:*
vmware esxi 5.5 cpe:2.3:o:vmware:esxi:5.5:3b:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:-:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:1:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:1a:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:1b:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:2:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:3:*:*:*:*:*:*
vmware esxi 6.0 cpe:2.3:o:vmware:esxi:6.0:3a:*:*:*:*:*:*
vmware esxi 6.5 cpe:2.3:o:vmware:esxi:6.5:-:*:*:*:*:*:*

References for CVE-2017-4904

URL Tags
http://www.securityfocus.com/bid/97165 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038148 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1038149 Third Party Advisory VDB Entry
http://www.vmware.com/security/advisories/VMSA-2017-0006.html Vendor Advisory
cvelogic Threat Intelligence