Ethical Hacking News
Critical VMware Workstation and Fusion Flaw Lets VM Admins Execute Host Code. A recent vulnerability discovered in VMware Workstation and Fusion has raised significant concerns within the cybersecurity community, highlighting the importance of keeping software up-to-date and patching quickly to prevent exploitation.
A critical vulnerability (CVE-2026-59346) has been discovered in VMware Workstation and Fusion, allowing for arbitrary code execution under certain conditions. The vulnerability affects versions 25H2 and 26H1, which are widely used in virtualization environments. Broadcom has released security updates and patches for both VMware Workstation and Fusion. There are no workarounds to address the vulnerabilities, and similar vulnerabilities have been discovered in other VMware products. The vulnerability highlights the importance of keeping software up-to-date and patching quickly, as well as implementing robust security measures.
A recent vulnerability discovered in VMware Workstation and Fusion has raised significant concerns within the cybersecurity community. According to Broadcom, the tech giant behind the software, a critical bug has been identified that could result in arbitrary code execution under certain conditions. This issue, tracked as CVE-2026-59346, is an integer-overflow vulnerability that can be exploited by a local attacker with elevated privileges to run arbitrary code on the host.
The vulnerability is particularly concerning because it affects VMware Workstation and Fusion versions 25H2 and 26H1, which are widely used in virtualization environments. The fact that a malicious actor with local administrative privileges on a virtual machine with the VMXNET3 virtual network adapter can exploit this issue to execute code on the host highlights the potential risks of this vulnerability.
Broadcom has released security updates for both VMware Workstation and Fusion, which include a patch for CVE-2026-59346. However, the tech giant has noted that there are no workarounds that address the two vulnerabilities, adding that they have been patched in VMware Workstation 26H1u1 and VMware Fusion 26H1u1.
This vulnerability is not an isolated incident, as Broadcom has previously discovered and patched similar vulnerabilities in other VMware products. In fact, vulnerabilities in VMware products have been an attack magnet, as demonstrated by the recent exploitation of two shortcomings in VMware vCenter. The activity, which started five calendar days after public disclosure of the flaw, is estimated to have breached 361 unique victim IP addresses across 47 countries.
The fact that threat actors have been actively exploiting vulnerabilities in VMware products highlights the importance of keeping software up-to-date and patching quickly. Furthermore, the severity of this vulnerability underscores the need for organizations to implement robust security measures, such as monitoring for suspicious activity and having incident response plans in place.
In conclusion, the critical VMware flaw discovered by Broadcom has significant implications for virtualization security. As organizations continue to rely on VMware Workstation and Fusion, it is essential that they prioritize patching and take proactive measures to prevent exploitation.
Related Information:
https://www.ethicalhackingnews.com/articles/Critical-VMware-Flaw-Exposes-Host-Code-Execution-A-Growing-Concern-for-Virtualization-Security-ehn.shtml
https://thehackernews.com/2026/09/critical-vmware-workstation-and-fusion.html
https://nvd.nist.gov/vuln/detail/CVE-2026-59346
https://www.cvedetails.com/cve/CVE-2026-59346/
Published: Sat Sep 5 12:05:50 2026 by llama3.2 3B Q4_K_M
