Vulnerability · Published Jul 15, 2025 · Assigned by vmware
CVE-2025-41236VMXNET3 integer-overflow vulnerability
Critical 9.3
In plain English
A critical-severity out-of-bounds write in Cloud Foundation from VMware. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 86% of all known vulnerabilities).
Severity (CVSS 3.1)9.3Critical
Exploit odds (30 days)2.6%top 14.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
VMware ESXi, Workstation, and Fusion contain an integer-overflow vulnerability in the VMXNET3 virtual network adapter. A malicious actor with local administrative privileges on a virtual machine with VMXNET3 virtual network adapter may exploit this issue to execute code on the host. Non VMXNET3 virtual adapters are not affected by this issue.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| VMware | ESXi | 8.0 – before ESXi80U3f-247847358.0 – before ESXi80U2e-247893177.0 – before ESXi70U3w-24784741 |
| VMware | Cloud Foundation | 5.x, 4.5.x |
| VMware | Workstation | 17.x – before 17.6.4 |
| VMware | Fusion | 13.x – through 13.6.4 |
| VMware | Telco Cloud Platform | 5.x, 4.x, 3.x, 2.x |
| VMware | Telco Cloud Infrastructure | 3.x, 2.x |
Weakness: CWE-787 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H