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CVE-2017-4933

Published: Dec 20, 2017Updated: May 13, 2026 Sources: CVE List NVDCWE-787
NVD MITRE
8.8CVSSHIGH
EPSS Score
3.6%
Top 12.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

VMware ESXi (6.5 before ESXi650-201710401-BG), Workstation (12.x before 12.5.8), and Fusion (8.x before 8.5.9) contain a vulnerability that could allow an authenticated VNC session to cause a heap overflow via a specific set of VNC packets resulting in heap corruption. Successful exploitation of this issue could result in remote code execution in a virtual machine via the authenticated VNC session. Note: In order for exploitation to be possible in ESXi, VNC must be manually enabled in a virtual machine's .vmx configuration file. In addition, ESXi must be configured to allow VNC traffic through the built-in firewall.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-787

Affected Products

ESXiVMware
On-prem
Cloud & SaaS / virtualization
WorkstationVMware
On-premDesktop App
Cloud & SaaS / virtualization
FusionVMware
On-premDev Tool
Cloud & SaaS / virtualization
workstation provmware
On-premDesktop App
Cloud & SaaS / virtualization
esxivmware
On-prem
Cloud & SaaS / virtualization
vmwarecommercialUSCloud & SaaSaka vmware inc
and 1 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://www.vmware.com/security/advisories/VMSA-2017-0021.html
vmware.com
http://www.securitytracker.com/id/1040025
securitytracker.com
http://www.securitytracker.com/id/1040024
securitytracker.com

Timeline

Published
Dec 20, 2017
Last Updated
May 13, 2026

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