Buffer overflow in VMware Cloud Foundation

CVE-2025-41238

VMware ESXi, Workstation, and Fusion contain a heap-overflow vulnerability in the PVSCSI (Paravirtualized SCSI) controller 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 and exploitable only with configurations that are unsupported. 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

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-41238?
CVE-2025-41238 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-2025-41238?
Critical severity. CVSS v3 base score is 9.3 out of 10.