Critical VMware Workstation and Fusion Flaw Lets VM Admins Execute Host Code
CVE-2026-59346 affects the affected technology. The reported consequence is code execution, meaning successful exploitation could make the affected application or process run attacker-controlled code.
What happened
Critical VMware Workstation and Fusion Flaw Lets VM Admins Execute Host Code. Broadcom has released security updates for two security flaws impacting VMware Workstation and Fusion, including one critical bug that could result in arbitrary code execution under certain conditions. A security weakness in the affected technology is being tracked as CVE-2026-59346.
CVE-2026-59346 affects the affected technology. The reported consequence is code execution, meaning successful exploitation could make the affected application or process run attacker-controlled code. VMware Workstation and Fusion Updates Patch Critical Vulnerability.
The flaws could allow attackers with administrative access to a virtual machine to execute code on the host system. 3), is an integer-overflow vulnerability that a local attacker with elevated privileges can exploit to run arbitrary code. No exploitation flag is present in the retained CyberDeltaForce data at this time; that status can change as vendor and threat-intelligence reporting develops.
Editorial note: this News Brief follows the available evidence and adds length only when additional facts or useful context are available. Where public reporting does not establish a specific victim sequence, CyberDeltaForce does not present one as fact.
What the reporting and advisory establish
Broadcom has released security updates for two security flaws impacting VMware Workstation and Fusion, including one critical bug that could result in arbitrary code execution under certain conditions.
3), is an integer-overflow vulnerability that a local attacker with elevated privileges can exploit to run arbitrary code.
No exploitation flag is present in the retained CyberDeltaForce data at this time; that status can change as vendor and threat-intelligence reporting develops.
Critical VMware Workstation and Fusion Flaw Lets VM Admins Execute Host Code
The flaws could allow attackers with administrative access to a virtual machine to execute code on the host system.
A security weakness in the affected technology is being tracked as CVE-2026-59346. The reported consequence is code execution, meaning successful exploitation could make the affected application or process run attacker-controlled code. The flaws could allow attackers with administrative access to a virtual machine to execute code on the host system. VMware Workstation and Fusion Updates Patch Critical Vulnerability. The vulnerability, tracked as CVE-2026-59346 (CVSS score: 9.3), is an integer-overflow vulnerability that a local attacker with elevated privileges can exploit to run arbitrary code. There is no reported exploitation in the current available reporting, so the public picture at this point is a disclosed vulnerability with known exploitation conditions rather than a confirmed compromise of every affected installation.
What this means for your environment
Move from the published facts to the technical path, exposure conditions and defensive decisions that matter in a real environment.
Attack & Exploitation Path
The sequence below shows how the vulnerability can be reached and what successful exploitation can produce. Each stage is labeled by evidence status.
Required condition: CVE-2026-59346 is present and the vulnerable function is reachable in the way the software is normally used.
Required condition: attacker-controlled input or the relevant workflow reaches the affected code path.
Not publicly disclosed in enough technical detail to describe the mechanism without inference.
successful exploitation can execute attacker-controlled code in the affected application or service. The practical reach depends on the privileges and resources available to that process.
Map CVE-2026-59346 to real assets, verify the vendor fix or mitigation, confirm the vulnerable path is no longer reachable, and review relevant telemetry for behavior consistent with exploitation.
Why this matters to you
CVE-2026-59346 matters because the practical risk is not the score alone — it is whether the affected technology or service exists in your environment and whether the reported trigger or exposure path can reach it. No exploitation flag is currently present in the CDF data, but that does not remove the need to validate affected systems.
Does this deserve attention in my environment?
Check the conditions below against your use of the affected technology or service.
Select the conditions that are true in your environment. Leaving a condition unselected does not mean you are safe — it only means you have not marked it as applicable.
- Search endpoint, software and asset inventory for the affected technology or service.
- Confirm the vendor-recommended fixed version or mitigation and verify deployment, not just assignment, across affected assets.
- Review relevant endpoint, application, network or identity telemetry for activity associated with exploitation of the affected component.
- Track vendor and government guidance for any change in exploitation status while remediation is underway.
What remains unconfirmed
- Available reporting does not currently indicate exploitation, but that can change as vendor, government or threat-intelligence reporting develops.
Sources & References
Original reporting and technical references are kept here for readers who want to verify the facts. Publisher names stay out of the reading flow above.