VMware ESXi / vSphere Vulnerabilities & Security Advisories

12 advisories tracked · VMware Security Advisories (VMSA) via NVD · 6 listed in the CISA Known Exploited Vulnerabilities catalog

Every row below is a published VMware (Broadcom) advisory that VulniPulse classified as ESXi / vSphere, with the CVEs, affected and fixed releases and exploitation status the vendor stated. Severity mix: 4 critical, 4 high, 1 low.

Source

VMware Security Advisories (VMSA) via NVD

Broadcom's VMSA portal is a JavaScript app with no stable public feed, so VulniPulse ingests VMware CVEs from NVD filtered to VMware's own CNAs ([email protected] and Broadcom's successor CNA) — official, CNA-published data covering ESXi, vCenter Server, NSX, Aria/vRealize, Cloud Foundation, Workstation/Fusion and VMware Tools. Each entry links back to the Broadcom/VMware advisory when NVD carries the reference.

Visit VMware (Broadcom) advisories VMware RSS feed ESXi / vSphere end-of-life dates(10 dated releases)

Latest VMware ESXi / vSphere advisories

All severities critical (4)high (4)medium (0)low (1)

High7.7VMware

High [CVE-2026-41012] BOSH: Traffic interception vulnerability in BOSH Director vCenter CPI allows attackers positioned between BOSH Director and…

Traffic interception vulnerability in BOSH Director vCenter CPI allows attackers positioned between BOSH Director and vCenter to impersonate vCenter REST API and capture administrator credentials via HTTP Basic auth, leading to complete virtualization infrastructure takeover. An attacker who can intercept traffic between the BOSH Director and vCenter can establish a malicious server impersonating the vCenter REST API. When the BOSH Director makes CPI calls to perform routine cloud infrastructure operations, the attacker captures the vCenter administrator username and password transmitted via HTTP Basic authentication. The vulnerability stems from insufficient authentication security in the communication protocol between BOSH Director and vCenter. While HTTPS may be used, the lack of proper certificate validation and pinning allows attackers to successfully impersonate vCenter endpoints. Because vCenter credentials typically grant full administrative control over the entire virtualization estate, successful credential capture yields complete takeover of every VM, datastore, and network the CPI manages. This exposure exists on every CPI call (including routine deployment operations, not just when tags are configured) and cannot be mitigated by supplying a CA certificate alone. Affected product named by the advisory: bosh-vsphere-cpi-release.

Critical9.3VMware

Critical [CVE-2026-47876] VMXNET3 out-of-bounds write vulnerability

VMware ESX contains an out-of-bounds write 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 named by the advisory: Cloud Foundation; vSphere Foundation; Telco Cloud Platform.

Critical9.8VMware

Critical [CVE-2026-59309] vCenter: VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service.

VMware vCenter contains an authentication bypass vulnerability in the VMware Directory Service. A malicious actor with network access to vCenter may exploit this issue to bypass authentication and gain unauthorized access to the system. Affected products named by the advisory: Cloud Foundation; vSphere Foundation; Telco Cloud Infrastructure; Telco Cloud Platform.

Critical9.8VMwareExploitedCISA KEV

Critical [CVE-2026-59310] vCenter directory-traversal vulnerability

VMware vCenter contains a directory traversal vulnerability in the Syslog server. A malicious actor with network access to vCenter may exploit this issue to execute arbitrary code. Affected products named by the advisory: Cloud Foundation; vSphere Foundation; Telco Cloud Infrastructure; Telco Cloud Platform.

High7.6VMware

High [CVE-2026-41703] Out-of-bounds read vulnerability

VMware ESX, Workstation, and Fusion contain an out-of-bounds read vulnerability. A malicious actor with VM deployment privileges could trigger an out-of-bounds read, potentially leading to information disclosure or more likely a Denial-of-Service (DoS) condition of the host process. On Workstation and Fusion, the impact of this vulnerability is restricted to information disclosure. Affected products named by the advisory: Cloud Foundation; vSphere Foundation; Telco Cloud Platform.

Low2.7VMwareExploitedCISA KEV

Low [CVE-2026-41709] ESX insufficient logging vulnerability

VMware ESX contains an insufficient logging vulnerability. A malicious administrator could exploit this issue to perform certain operations without them being logged. Affected products named by the advisory: Cloud Foundation; vSphere Foundation; Telco Cloud Platform.

Critical9.3VMware

Critical [CVE-2025-41237] VMCI integer-underflow vulnerability

VMware ESXi, Workstation, and Fusion contain an integer-underflow in VMCI (Virtual Machine Communication Interface) that leads to an out-of-bounds write. A malicious actor with local administrative privileges on a virtual machine may exploit this issue to execute code as the virtual machine's VMX process running on the host. On ESXi, the exploitation is contained within the VMX sandbox whereas, on Workstation and Fusion, this may lead to code execution on the machine where Workstation or Fusion is installed. Affected products named by the advisory: Cloud Foundation; vSphere Foundation.

High8.2VMwareExploitedCISA KEV

High [CVE-2025-22225] VMware ESXi contains an arbitrary write vulnerability

VMware ESXi contains an arbitrary write vulnerability. A malicious actor with privileges within the VMX process may trigger an arbitrary kernel write leading to an escape of the sandbox. Affected products named by the advisory: VMware Cloud Foundation; VMware Telco Cloud Platform; VMware Telco Cloud Infrastructure.

High7.1VMware

High [CVE-2023-20900] VMware Tools: malicious actor that has been granted Guest Operation Privileges https://docs.vmware.com/en/VMware-vSphere/8.0/vsphere-security/GUID-6A952214-0E5E-4CCF-9D2A-90948FF643EC.html in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias https://vdc-download.vmware.com/vmwb-repository/dcr-public/d1902b0e-d479-46bf-8ac9-cee0e31e8ec0/07ce8dbd-db48-4261-9b8f-c6d3ad8ba472/vim.vm.guest.AliasManager.html

A malicious actor that has been granted Guest Operation Privileges in a target virtual machine may be able to elevate their privileges if that target virtual machine has been assigned a more privileged Guest Alias. AliasManager.html. Affected product named by the advisory: VMware Tools (open-vm-tools).

UnratedVMwareExploitedCISA KEV

Advisory [CVE-2021-21985] VMware vCenter Server and VMware Cloud Foundation: The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server

The vSphere Client (HTML5) contains a remote code execution vulnerability due to lack of input validation in the Virtual SAN Health Check plug-in which is enabled by default in vCenter Server. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. Affected product named by the advisory: VMware vCenter Server and VMware Cloud Foundation.

UnratedVMwareExploitedCISA KEV

Advisory [CVE-2021-21972] VMware vCenter Server: The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin

The vSphere Client (HTML5) contains a remote code execution vulnerability in a vCenter Server plugin. A malicious actor with network access to port 443 may exploit this issue to execute commands with unrestricted privileges on the underlying operating system that hosts vCenter Server. This affects VMware vCenter Server (7.x before 7.0 U1c, 6.7 before 6.7 U3l and 6.5 before 6.5 U3n) and VMware Cloud Foundation (4.x before 4.2 and 3.x before 3.10.1.2).

UnratedVMwareExploitedCISA KEV

Advisory [CVE-2020-3992] OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before ESXi650-202010401-SG) has a use-after-free issue

OpenSLP as used in VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202010401-SG, 6.5 before ESXi650-202010401-SG) has a use-after-free issue. A malicious actor residing in the management network who has access to port 427 on an ESXi machine may be able to trigger a use-after-free in the OpenSLP service resulting in remote code execution.

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