TI-2025-27484 Aliases CVE-2025-41237 GHSA-6hwj-h56x-jhh3

VMCI integer-underflow vulnerability

MEDIUM 42CWE-787Published 2025-07-15 · Updated 2026-11-03

Key facts

Attack vector: Local
Privileges required: None
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 · CNA. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

VMware ESXi, Workstation, and Fusion contain an integer-underflow in VMCI (Virtual Machine Communication Interface) that leads to an out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host. On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00464 40th percentileScored 2026-11-07

Fix Fixed ESXi (VMware): ESXi80U3f-24784735, ESXi80U2e-24789317, ESXi70U3w-24784741Workstation (VMware): 17.6.4+1 more product

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
VMware	Cloud Foundation	9.0.0.0, 5.x, 4.5.x	—	No fix listed	CNA
VMware	vSphere Foundation	9.0.0.0	—	No fix listed	CNA
VMware	ESXi	8.0 to before ESXi80U3f-24784735; 8.0 to before ESXi80U2e-24789317; 7.0 to before ESXi70U3w-24784741	ESXi80U3f-24784735, ESXi80U2e-24789317, ESXi70U3w-24784741	Patch available	CNA
VMware	Workstation	17.x to before 17.6.4	17.6.4	Patch available	CNA
VMware	Fusion	13.x to before 13.6.4	13.6.4	Patch available	CNA
VMware	Telco Cloud Platform	5.x, 4.x, 3.x, 2.x	—	No fix listed	CNA
VMware	Telco Cloud Infrastructure	3.x, 2.x	—	No fix listed	CNA

Cloud Foundation VendorVMware Affected 9.0.0.0, 5.x, 4.5.x Fixed in — No fix listed CNA
vSphere Foundation VendorVMware Affected 9.0.0.0 Fixed in — No fix listed CNA
ESXi VendorVMware Affected 8.0 to before ESXi80U3f-24784735; 8.0 to before ESXi80U2e-24789317; 7.0 to before ESXi70U3w-24784741 Fixed in ESXi80U3f-24784735, ESXi80U2e-24789317, ESXi70U3w-24784741 Patch available CNA
Workstation VendorVMware Affected 17.x to before 17.6.4 Fixed in 17.6.4 Patch available CNA
Fusion VendorVMware Affected 13.x to before 13.6.4 Fixed in 13.6.4 Patch available CNA
Telco Cloud Platform VendorVMware Affected 5.x, 4.x, 3.x, 2.x Fixed in — No fix listed CNA
Telco Cloud Infrastructure VendorVMware Affected 3.x, 2.x Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 2

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:o:vmware:esxi::::::::	—	—	VMware
cpe:2.3:a:vmware:fusion::::::::	—	—	VMware

cpe:2.3:o:vmware:esxi:*:*:*:*:*:*:*:* Versions — — ·VMware
cpe:2.3:a:vmware:fusion:*:*:*:*:*:*:*:* Versions — — ·VMware

Remediation

Fix · CNA ESXi (VMware) Fixed in ESXi80U3f-24784735, ESXi80U2e-24789317, ESXi70U3w-24784741
Fix · CNA Workstation (VMware) Fixed in 17.6.4
Fix · CNA Fusion (VMware) Fixed in 13.6.4

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2025-07-15
VMware ESXi, Workstation 17.6.4, ESXi70U3w-24784741 and 2 more versions
4 records Highest priority Priority MEDIUM 3 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2025-27483 VMXNET3 integer-overflow vulnerabilityPriority MEDIUM 47
- TI-2025-27485 PVSCSI heap-overflow vulnerabilityPriority MEDIUM 42
- TI-2025-27486 vSockets information-disclosure vulnerabilityPriority LOW 37
Show all 4 records →
Release · 2025-07-15
VMware Fusion 13.6.4
3 records Highest priority Priority MEDIUM 2 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2025-27485 PVSCSI heap-overflow vulnerabilityPriority MEDIUM 42
- TI-2025-27486 vSockets information-disclosure vulnerabilityPriority LOW 37
Show all 3 records →

Timeline

2026-10-02 Threatist record created from CVE-2025-41237
2026-10-03 Alias added: GHSA-6hwj-h56x-jhh3

References

Other 1

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35877

TI-2026-42442 vCenter directory-traversal vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2024-26040 Privilege escalation in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
TI-2024-26039 Heap-overflow in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
TI-2024-24610 Out-of-bounds write in VMware vCenter Server KEVCVSS 3.1CRITICAL 9.8
TI-2023-16914 VMware vCenter Server Out-of-Bounds Write Vulnerability KEVCVSS 3.1CRITICAL 9.8
TI-2023-07303 Command injection in Aria Operations for Networks KEVCVSS 3.1CRITICAL 9.8

See all 1181 →

Sources

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