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CVE-2025-41236— VMXNET3 integer-overflow vulnerability

Quick assessment

Affected
VMware ESXi
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

VMware ESXi等都是美国威睿（VMware）公司的产品。VMware ESXi是一套可直接安装在物理服务器上的服务器虚拟化平台。VMware Workstation是一套虚拟机软件。VMware Fusion是一套专用于在苹果机（Mac）上运行Windows应用程序的的虚拟机软件。 VMware多款产品存在安全漏洞，该漏洞源于VMXNET3虚拟网络适配器存在整数溢出，可能导致执行任意代码。以下产品受到影响：VMware ESXi、Workstation和Fusion。

CVSS 9.3 · Critical EPSS 2.53% · P84
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I. Basic Information for CVE-2025-41236

Vulnerability Information
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Vulnerability Title
VMXNET3 integer-overflow vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
VMware多款产品 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
VMware ESXi等都是美国威睿（VMware）公司的产品。VMware ESXi是一套可直接安装在物理服务器上的服务器虚拟化平台。VMware Workstation是一套虚拟机软件。VMware Fusion是一套专用于在苹果机（Mac）上运行Windows应用程序的的虚拟机软件。 VMware多款产品存在安全漏洞，该漏洞源于VMXNET3虚拟网络适配器存在整数溢出，可能导致执行任意代码。以下产品受到影响：VMware ESXi、Workstation和Fusion。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

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Affected Products

Vendor Product Affected Versions CPE Subscribe
VMware ESXi 8.0 ~ ESXi80U3f-24784735 -
VMware Cloud Foundation 5.x, 4.5.x -
VMware Workstation 17.x ~ 17.6.4 -
VMware Fusion 13.x ~ 13.6.4 -
VMware Telco Cloud Platform 5.x, 4.x, 3.x, 2.x -
VMware Telco Cloud Infrastructure 3.x, 2.x -

II. Public POCs for CVE-2025-41236

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III. Intelligence Information for CVE-2025-41236

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Same Patch Batch · VMware · 2025-07-15 · 4 CVEs total

CVE-2025-41238 9.3 CRITICAL PVSCSI heap-overflow vulnerability
CVE-2025-41237 9.3 CRITICAL VMCI integer-underflow vulnerability
CVE-2025-41239 7.1 HIGH vSockets information-disclosure vulnerability

IV. Related Vulnerabilities

Same product: ESXi
Same vendor: VMware
Same weakness: CWE-787

V. Comments for CVE-2025-41236

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