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9.3
CRITICAL CVSS 3.1
CVE-2025-41236
VMware ESXi, Workstation, and Fusion VMXNET3 Integer Overflow Remote Code Execution
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.

INFO

Published Date :

July 15, 2025, 7:15 p.m.

Last Modified :

July 15, 2025, 8:07 p.m.

Remotely Exploit :

No

Source :

[email protected]
Affected Products

The following products are affected by CVE-2025-41236 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Vmware workstation
2 Vmware esxi
3 Vmware fusion
4 Vmware telco_cloud_platform
5 Vmware telco_cloud_infrastructure
: Total Affected Vendor : 1 | Products : 5
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 CRITICAL [email protected]
Solution
Update VMware products to patch the VMXNET3 virtual network adapter integer overflow.
  • Update VMware ESXi to the latest version.
  • Update VMware Workstation to the latest version.
  • Update VMware Fusion to the latest version.
Public PoC/Exploit Available at Github

CVE-2025-41236 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-41236.

URL Resource
https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35877
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-41236 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-41236 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
ascii42/check_vmware_cve

check_vmware_cvie is an icinga plugin to gather CVEs and compare it with the used products

cve icinga icinga-plugin icinga2 icinga2-plugin vmware vsphere

Shell

Updated: 2 days, 5 hours ago
0 stars 0 fork 0 watcher
Born at : Aug. 23, 2025, 12:26 p.m. This repo has been linked 6 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-41236 vulnerability anywhere in the article.

  • CybersecurityNews
17,000+ VMware ESXi Servers Vulnerable to Critical Integer-Overflow Vulnerability

More than 17,000 VMware ESXi installations worldwide are at risk from a severe integer-overflow vulnerability tracked as CVE-2025-41236 (CVSS 9.3), cybersecurity researchers warn. This critical vulner ... Read more

Published Date: Aug 12, 2025 (1 week, 6 days ago)
  • security.nl
'16.000 VMware ESXi-servers missen update voor kritiek beveiligingslek'

Ruim 16.000 VMware ESXi-servers, waarvan meer dan 600 in Nederland, missen een beveiligingsupdate voor een kritieke kwetsbaarheid. Dat laat The Shadowserver Foundation op basis van een online scan wet ... Read more

Published Date: Aug 12, 2025 (2 weeks ago)
  • CybersecurityNews
CISA Issues ICS Advisories for Rockwell Automation Using VMware, and Güralp Seismic Monitoring Systems

CISA released two high-severity Industrial Control Systems (ICS) advisories on July 31, 2025, highlighting critical vulnerabilities in widely deployed industrial equipment that could enable remote att ... Read more

Published Date: Aug 01, 2025 (3 weeks, 4 days ago)
  • CybersecurityNews
Weekly Cybersecurity Newsletter: Chrome 0-Day, VMware Flaws Patched, Fortiweb Hack, Teams Abuse, and More

It’s been a busy seven days for security alerts. Google is addressing another actively exploited zero-day in Chrome, and VMware has rolled out key patches for its own set of vulnerabilities. We’ll als ... Read more

Published Date: Jul 20, 2025 (1 month ago)
  • TheCyberThrone
VMware Fixes Vulnerabilities Exploited at Pwn2Own Berlin

Following successful live exploit demonstrations at the Pwn2Own Berlin 2025 security competition held in May, VMware has patched four zero-day vulnerabilities affecting several of its virtualization p ... Read more

Published Date: Jul 19, 2025 (1 month ago)
  • BleepingComputer
VMware fixes four ESXi zero-day bugs exploited at Pwn2Own Berlin

VMware fixed four vulnerabilities in VMware ESXi, Workstation, Fusion, and Tools that were exploited as zero-days during the Pwn2Own Berlin 2025 hacking contest in May 2025. Three of the patched flaws ... Read more

Published Date: Jul 17, 2025 (1 month, 1 week ago)
  • CybersecurityNews
VMware ESXi and Workstation Vulnerabilities Let Attackers Execute Malicious Code on Host

Multiple severe vulnerabilities have been addressed affecting VMware ESXi, Workstation, Fusion, and Tools that could allow attackers to execute malicious code on host systems. The vulnerabilities, ide ... Read more

Published Date: Jul 16, 2025 (1 month, 1 week ago)
  • Daily CyberSecurity
Broadcom Addresses Critical Vulnerabilities in VMware ESXi, Workstation, and Fusion

Broadcom has issued an urgent advisory addressing four critical vulnerabilities affecting VMware ESXi, Workstation, Fusion, and Tools, with CVSS scores reaching as high as 9.3. These flaws, reported t ... Read more

Published Date: Jul 15, 2025 (1 month, 1 week ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-41236 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by [email protected]

    Jul. 15, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
    Added CWE CWE-787
    Added Reference https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35877
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 9.3
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact