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CVE-2025-41236

CRITICALCVSS 9.3/10EPSS 2.11%

Last modified

CVE-2025-41236 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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.. EPSS estimates a 2.11% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.3/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability
2.11%

79.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2025-41236?
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.
How severe is CVE-2025-41236?
CVE-2025-41236 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 2.11% probability of exploitation in the next 30 days.
How do I fix CVE-2025-41236?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-41236?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST