CVE-2025-41236 | BDVDB-2026-286228 Detail

VMwareESXi

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.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.

Weaknesses#

CWE-787 Out-of-bounds Write

References#

https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/35877

Exploit#

No public exploit known

History#

Version 12025-07-15Record published in the CVE List.
Version 22026-02-26Most recent update recorded in the CVE List.

Published

Published: 2025-07-15
Last modified: 2026-02-26

Vendor information

Vendor: VMware
Product: ESXi

All VMware vulnerabilities

Score

9.3 Critical

EPSS

2.6%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 85.7.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Memory Corruption

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 8.0 and < ESXi80U3f-24784735
Fixed
ESXi80U3f-24784735
Vulnerable
>= 8.0 and < ESXi80U2e-24789317
Fixed
ESXi80U2e-24789317
Vulnerable
>= 7.0 and < ESXi70U3w-24784741
Fixed
ESXi70U3w-24784741

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.3 Critical

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

Metric breakdown
Attack Vector	Local
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	High

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).