CVE-2025-22225: 
vSphere ESXi Hypervisor vulnerability analysis and mitigation

CVE-2025-22225 is an arbitrary write vulnerability affecting VMware ESXi and related products, discovered and disclosed on March 4, 2025. The vulnerability impacts multiple VMware products including ESXi, Cloud Foundation, and Telco Cloud Infrastructure. This security flaw has been assigned a CVSS v3.1 base score of 8.2 (High severity) and has been added to CISA's Known Exploited Vulnerabilities Catalog (CISA Alert, VMware Advisory).

The vulnerability allows a malicious actor with privileges within the VMX process to trigger an arbitrary kernel write, potentially leading to an escape of the sandbox. It has been classified as CWE-787 (Out-of-bounds Write) and CWE-123 (Write-what-where Condition). The vulnerability received a CVSS v3.1 base score of 8.2 (High) with the vector string CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H, indicating local access requirements but high potential impact (VMware Advisory).

The exploitation of this vulnerability could allow attackers to escape the VM sandbox environment and gain unauthorized access to the hypervisor, posing severe security implications particularly in multi-tenant environments. The vulnerability affects various versions of VMware products, including ESXi 8.0, ESXi 7.0, Cloud Foundation, and Telco Cloud Infrastructure (SOCRadar Report).

VMware has released patches for affected products and versions. There are no viable workarounds for this vulnerability, making patch application critical. Organizations must apply the patches listed in the 'Fixed Version' column of the Response Matrix in the security advisory. CISA has mandated federal agencies to secure their systems by March 25, 2025 (VMware Advisory).