CVE-2025-22226highunder attackCWE-125

CVE-2025-22226: high-severity vulnerability in ESXi

Published · Updated

Follow this CVE+ Monitor Workstation+ Monitor VMware Cloud Foundation

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 7.1epss 1.6%
from disclosure to weapon
Published on NVDMar 4
CISA KEVMar 4
Action required by CISAfederal deadline: 2025-03-25

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

In short

VMware virtualization products have a flaw where a VM administrator can read memory from the VMware process by exploiting a reading error in the file-sharing feature, potentially exposing sensitive data.

Technical detail

An out-of-bounds read vulnerability in HGFS (Host-Guest File System) allows an authenticated attacker with VM administrative privileges to leak arbitrary memory from the vmx process. The vulnerability requires local access to the virtual machine and could expose sensitive information stored in the hypervisor's memory.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

VMware ESXi, Workstation, and Fusion contain an information disclosure vulnerability due to an out-of-bounds read in HGFS. A malicious actor with administrative privileges to a virtual machine may be able to exploit this issue to leak memory from the vmx process.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected products
n/a · ESXin/a · VMware Cloud Foundationn/a · VMware Fusionn/a · VMware Telco Cloud Infrastructuren/a · VMware Telco Cloud Platformn/a · VMware Workstation