ACTIVELY EXPLOITED
CVE-2025-22225: VMware ESXi Arbitrary Write Vulnerability
| Vendor | VMware |
|---|---|
| Product | ESXi |
| Actively exploited | Yes |
| Added to CISA KEV | 4 Mar 2025 |
| CISA federal deadline | 25 Mar 2025 |
| Ransomware use | Known |
| Weakness (CWE) | CWE-123 |
Required action (CISA's text)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Description (NVD)
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.
SOURCES
Other VMware flaws
- CVE-2025-22226: VMware ESXi, Workstation, and Fusion Information Disclosure Vulnerability
- CVE-2025-22224: VMware ESXi and Workstation TOCTOU Race Condition Vulnerability
- CVE-2024-38813: VMware vCenter Server Privilege Escalation Vulnerability
- CVE-2024-38812: VMware vCenter Server Heap-Based Buffer Overflow Vulnerability
- CVE-2024-37085: VMware ESXi Authentication Bypass Vulnerability
Data from NVD, CISA KEV, FIRST EPSS and vendor advisories. Updated 10 Nov 2026.