Live › vulnerability › CVE-2025-22225
Go to dashboardVMware ESXi has an arbitrary kernel write flaw that lets someone with privileges inside the VMX process escape the VM sandbox. CISA lists it as exploited in the wild, and the sources say it is linked to ransomware use.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 19:11 UTC, 3h before NVD. All times on this page are UTC.
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| VMware ESXi | vendor | – | – |
| vmware esxi | vendor | = 7.0 | – |
| vmware esxi | vendor | = 8.0 | – |
| vmware cloud foundation | vendor | – | – |
| vmware telco cloud infrastructure | vendor | = 2.2 | – |
| vmware telco cloud infrastructure | vendor | = 2.5 | – |
| vmware telco cloud infrastructure | vendor | = 2.7 | – |
| vmware telco cloud infrastructure | vendor | = 3.0 | – |
| vmware telco cloud platform | vendor | = 2.0 | – |
| vmware telco cloud platform | vendor | = 2.5 | – |
| vmware telco cloud platform | vendor | = 2.7 | – |
| vmware telco cloud platform | vendor | = 3.0 | – |
| vmware telco cloud platform | vendor | = 4.0 | – |
| vmware telco cloud platform | vendor | = 4.0.1 | – |
| vmware telco cloud platform | vendor | = 5.0 | – |
Check the ESXi build against the VMware advisory for CVE-2025-22225 (VMSA-2025-0004); the sources do not give exact fixed build numbers.
Apply the vendor patch or mitigations per VMware instructions; CISA says to discontinue use if mitigations are unavailable.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
VMware ESXi contains an arbitrary write vulnerability. Successful exploitation allows an attacker with privileges within the VMX process to trigger an arbitrary kernel write leading to an escape of the sandbox.
CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
This page as .md · .json · in your agent: get_signal("CVE-2025-22225")
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