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TI-2017-03065 Aliases CVE-2017-4933GHSA-6m9x-2xwm-463c

Out-of-bounds write in VMware ESXi

Priority MEDIUM 44CWE-787Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

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.

Why it matters now

EPSS 0.03571 89th percentileScored 2026-11-07
Fix Fixed Workstation (VMware): 12.5.8Fusion (VMware): 8.5.9

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
VMwareESXi6.5 before ESXi650-201710401-BG—No fix listedCNA
VMwareWorkstation12 to before 12.5.812.5.8Patch availableCNA
VMwareFusion8 to before 8.5.98.5.9Patch availableCNA
  • ESXi VendorVMware Affected 6.5 before ESXi650-201710401-BG Fixed in — No fix listed CNA
  • Workstation VendorVMware Affected 12 to before 12.5.8 Fixed in 12.5.8 Patch available CNA
  • Fusion VendorVMware Affected 8 to before 8.5.9 Fixed in 8.5.9 Patch available CNA

CPE configurations NVD · 35

CPEVersionsRoleVendor
cpe:2.3:a:vmware:workstation_pro:*:*:*:*:*:*:*:*12.0.0 to before 12.5.8VulnerableVMware
cpe:2.3:a:vmware:workstation_pro:14.0:*:*:*:*:*:*:*14.0VulnerableVMware
cpe:2.3:a:vmware:workstation_pro:14.1.0:*:*:*:*:*:*:*14.1.0VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:-:*:*:*:*:*:*6.5VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201701001:*:*:*:*:*:*6.5 650-201701001VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201703001:*:*:*:*:*:*6.5 650-201703001VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201703002:*:*:*:*:*:*6.5 650-201703002VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201704001:*:*:*:*:*:*6.5 650-201704001VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707101:*:*:*:*:*:*6.5 650-201707101VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707102:*:*:*:*:*:*6.5 650-201707102VulnerableVMware
  • cpe:2.3:a:vmware:workstation_pro:*:*:*:*:*:*:*:* Versions 12.0.0 to before 12.5.8 Vulnerable ·VMware
  • cpe:2.3:a:vmware:workstation_pro:14.0:*:*:*:*:*:*:* Versions 14.0 Vulnerable ·VMware
  • cpe:2.3:a:vmware:workstation_pro:14.1.0:*:*:*:*:*:*:* Versions 14.1.0 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:-:*:*:*:*:*:* Versions 6.5 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201701001:*:*:*:*:*:* Versions 6.5 650-201701001 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201703001:*:*:*:*:*:* Versions 6.5 650-201703001 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201703002:*:*:*:*:*:* Versions 6.5 650-201703002 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201704001:*:*:*:*:*:* Versions 6.5 650-201704001 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707101:*:*:*:*:*:* Versions 6.5 650-201707101 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707102:*:*:*:*:*:* Versions 6.5 650-201707102 Vulnerable ·VMware
Show 25 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:vmware:esxi:6.5:650-201707103:*:*:*:*:*:*6.5 650-201707103VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707201:*:*:*:*:*:*6.5 650-201707201VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707202:*:*:*:*:*:*6.5 650-201707202VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707203:*:*:*:*:*:*6.5 650-201707203VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707204:*:*:*:*:*:*6.5 650-201707204VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707205:*:*:*:*:*:*6.5 650-201707205VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707206:*:*:*:*:*:*6.5 650-201707206VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707207:*:*:*:*:*:*6.5 650-201707207VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707208:*:*:*:*:*:*6.5 650-201707208VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707209:*:*:*:*:*:*6.5 650-201707209VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707210:*:*:*:*:*:*6.5 650-201707210VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707211:*:*:*:*:*:*6.5 650-201707211VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707212:*:*:*:*:*:*6.5 650-201707212VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707213:*:*:*:*:*:*6.5 650-201707213VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707214:*:*:*:*:*:*6.5 650-201707214VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707215:*:*:*:*:*:*6.5 650-201707215VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707216:*:*:*:*:*:*6.5 650-201707216VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707217:*:*:*:*:*:*6.5 650-201707217VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707218:*:*:*:*:*:*6.5 650-201707218VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707219:*:*:*:*:*:*6.5 650-201707219VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707220:*:*:*:*:*:*6.5 650-201707220VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201707221:*:*:*:*:*:*6.5 650-201707221VulnerableVMware
cpe:2.3:o:vmware:esxi:6.5:650-201710001:*:*:*:*:*:*6.5 650-201710001VulnerableVMware
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:*8.0.0 to before 8.5.9VulnerableVMware
cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:*not specified by NVDRunning onApple
  • cpe:2.3:o:vmware:esxi:6.5:650-201707103:*:*:*:*:*:* Versions 6.5 650-201707103 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707201:*:*:*:*:*:* Versions 6.5 650-201707201 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707202:*:*:*:*:*:* Versions 6.5 650-201707202 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707203:*:*:*:*:*:* Versions 6.5 650-201707203 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707204:*:*:*:*:*:* Versions 6.5 650-201707204 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707205:*:*:*:*:*:* Versions 6.5 650-201707205 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707206:*:*:*:*:*:* Versions 6.5 650-201707206 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707207:*:*:*:*:*:* Versions 6.5 650-201707207 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707208:*:*:*:*:*:* Versions 6.5 650-201707208 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707209:*:*:*:*:*:* Versions 6.5 650-201707209 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707210:*:*:*:*:*:* Versions 6.5 650-201707210 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707211:*:*:*:*:*:* Versions 6.5 650-201707211 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707212:*:*:*:*:*:* Versions 6.5 650-201707212 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707213:*:*:*:*:*:* Versions 6.5 650-201707213 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707214:*:*:*:*:*:* Versions 6.5 650-201707214 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707215:*:*:*:*:*:* Versions 6.5 650-201707215 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707216:*:*:*:*:*:* Versions 6.5 650-201707216 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707217:*:*:*:*:*:* Versions 6.5 650-201707217 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707218:*:*:*:*:*:* Versions 6.5 650-201707218 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707219:*:*:*:*:*:* Versions 6.5 650-201707219 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707220:*:*:*:*:*:* Versions 6.5 650-201707220 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201707221:*:*:*:*:*:* Versions 6.5 650-201707221 Vulnerable ·VMware
  • cpe:2.3:o:vmware:esxi:6.5:650-201710001:*:*:*:*:*:* Versions 6.5 650-201710001 Vulnerable ·VMware
  • cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:* Versions 8.0.0 to before 8.5.9 Vulnerable ·VMware
  • cpe:2.3:o:apple:mac_os_x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Apple

Remediation

  • Fix · CNA Workstation (VMware) Fixed in 12.5.8
  • Fix · CNA Fusion (VMware) Fixed in 8.5.9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-4933
  2. 2026-10-03 Alias added: GHSA-6m9x-2xwm-463c

References

Advisory 1

  • TI-2020-03488 Use after free in VMware ESXi KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-03949 Out-of-bounds write in ESXi and Horizon DaaS KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-16135 Time-of-check time-of-use race condition in VMware ESXi KEVCVSS 3.1CRITICAL 9.3
  • TI-2025-16136 Out-of-bounds write in VMware ESXi KEVCVSS 3.1HIGH 8.2
  • TI-2010-03709 The rds_page_copy_user function in net/rds/page.c in the Reliable Datagram Sockets (RDS)… KEVCVSS 3.1HIGH 7.8
  • TI-2024-24615 Authentication bypass in VMware ESXi KEVCVSS 3.1HIGH 7.2
See all 139 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences