CVE-2017-4933

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.

• CWE-787

• http://www.securitytracker.com/id/1040024Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040025Third Party Advisory, VDB Entry
• https://www.vmware.com/security/advisories/VMSA-2017-0021.htmlIssue Tracking, Vendor Advisory
• http://www.securitytracker.com/id/1040024Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1040025Third Party Advisory, VDB Entry
• https://www.vmware.com/security/advisories/VMSA-2017-0021.htmlIssue Tracking, Vendor Advisory

Published

Dec 20, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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