Buffer overflow in VMware Cloud Foundation
CVE-2025-41237
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.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (37.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.3 (Critical). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.
Affected products
- Vmware Cloud Foundation — versions 9.0.0.0, 5.x, 4.5.x
- Vmware Esxi — versions 8.0, 7.0
- Vmware Fusion — versions 13.x
- Vmware Telco Cloud Infrastructure — versions 3.x, 2.x
- Vmware Telco Cloud Platform — versions 5.x, 4.x, 3.x, 2.x
- Vmware Vsphere Foundation — versions 9.0.0.0
- Vmware Workstation — versions 17.x
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-41237?
- CVE-2025-41237 is a critical-severity vulnerability in VMware Cloud Foundation, classified under Out-of-bounds Write. CVSS score: 9.3/10. Published 2025-07-15.
- How severe is CVE-2025-41237?
- Critical severity. CVSS v3 base score is 9.3 out of 10.
- Is CVE-2025-41237 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.