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No exploitation reported

CVE-2025-41237

VMCI integer-underflow vulnerability

No exploitation reported by the sources we read.

  • Published2025-07-15
  • WeaknessCWE-787

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

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.

Timeline

dates in UTC
  1. 2025-07-1518:34CVE publishedCNA

Versions per branch

Products declared by the CNA

As vmware, the CNA that assigned this CVE, declared them in the CVE record; versions as written. NVD lists no product for this CVE yet: this is the only product data so far.

  • VMware Cloud Foundationother versions: not affected
    Affected
    • = 9.0.0.0, 5.x, 4.5.xno fix stated
  • VMware vSphere Foundationother versions: not affected
    Affected
    • = 9.0.0.0no fix stated
  • VMware ESXiother versions: not affected
    Affected
    • ≥ 8.0, < ESXi80U3f-24784735fixed in ESXi80U3f-24784735custom
    • ≥ 8.0, < ESXi80U2e-24789317fixed in ESXi80U2e-24789317custom
    • ≥ 7.0, < ESXi70U3w-24784741fixed in ESXi70U3w-24784741custom
  • VMware Workstationother versions: not affected
    Affected
    • ≥ 17.x, < 17.6.4fixed in 17.6.4custom
  • VMware Fusionother versions: not affected
    Affected
    • ≥ 13.x, < 13.6.4fixed in 13.6.4custom
  • VMware Telco Cloud Platformother versions: not affected
    Affected
    • = 5.x, 4.x, 3.x, 2.xno fix stated

1 more product in the CVE record.

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2025-07-15

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • ICSA-25-212-02 CISA5 known affected

    Rockwell Automation Lifecycle Services with VMware

    Rockwell Automation Industrial Data Center (IDC) with VMware: >=Generations_1|<=4 · Rockwell Automation VersaVirtual Appliance (VVA) with VMware Series: A and B · Rockwell Automation Threat Detection Managed Services (TDMS) with VMware: vers:all/* · +2 more

Full record on NVD

Fix

  1. Mitigation from the vendor CISA ICSA-25-212-02 · 5 productsRockwell Automation will contact impacted users with an active Rockwell Automation Infrastructure Managed Service contract or Threat Detection Managed Service contract to discuss actions needed for remediation efforts.
  2. Mitigation from the vendor CISA ICSA-25-212-02 · 5 productsRockwell recommends users without Rockwell Automation managed services contract to refer to Broadcom's advisories below:
  3. Mitigation from the vendor CISA ICSA-25-212-02 · 5 productsSupport Content Notification - Support Portal - Broadcom support portal
  4. Mitigation from the vendor CISA ICSA-25-212-02 · 5 productshttps://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/esxi-update-and-patch-release-notes/vsphere-esxi-80u3f-release-notes.html
  5. Mitigation from the vendor CISA ICSA-25-212-02 · 5 productshttps://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/8-0/release-notes/esxi-update-and-patch-release-notes/vsphere-esxi-80u2e-release-notes.html
  6. Mitigation from the vendor CISA ICSA-25-212-02 · 5 productshttps://techdocs.broadcom.com/us/en/vmware-cis/vsphere/vsphere/7-0/release-notes/esxi-update-and-patch-release-notes/vsphere-esxi-70u3w-release-notes.html

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof of concept
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Published
2025-07-15
Last Modified
2026-11-03
NVD status
Deferred
GitHub Advisory
GHSA-6hwj-h56x-jhh3

Frequently asked questions

What is CVE-2025-41237?

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.

Is CVE-2025-41237 actively exploited?

Active exploitation of CVE-2025-41237 has not been confirmed. Its EPSS score was 0.5% on 2026-11-09, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-41237?

CVE-2025-41237 has a CVSS v3 base score of 9.3 (CRITICAL severity), with vector string CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

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