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Home > Cybersecurity > VMware patches a bug affecting multiple products

VMware patches a bug affecting multiple products

VMware published an advisory to address a heap-overflow vulnerability that impacted ESXi, Workstation, and Fusion.


Erdem Yasar Erdem Yasar
January 6, 2022
1 min read

VMware published an advisory to address a heap-overflow vulnerability (CVE-2021-22045) in VMware Workstation, Fusion, and ESXi. The vulnerability was reported privately to the company. VMware stated that the updates to remediate the vulnerability are currently available for users to apply.

CVSSv3 base score of 7.7

The heap-overflow vulnerability was found in the CD-ROM device emulation in VMware products. It allows unauthorized third parties to exploit the vulnerability in conjunction with other issues allowing them to execute code on the hypervisor from a virtual machine. It has a CVSSv3 base score of 7.7, which is within the important severity range.

Affected versions and fixed versions are:

  • ESXi 7.0 – Patch pending
  • ESXi 6.7 – Fixed version: ESXi670-202111101-SG
  • ESXi 6.5 – Fixed version: ESXi650-202110101-SG
  • Workstation 16.x – Fixed version: 16.2.0
  • Fusion 12.x – Fixed version: 12.2.0

VMware also provided workarounds for the heap-overflow vulnerability, which can be found in the advisory.

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Tags: VMware
Erdem Yasar

Erdem Yasar

Erdem Yasar is a news editor at Cloud7. Erdem started his career by writing video game reviews in 2007 for PC World magazine while he was studying computer engineering. In the following years, he focused on software development with various programming languages. After his graduation, he continued to work as an editor for several major tech-related websites and magazines. During the 2010s, Erdem Yasar shifted his focus to cloud computing, hosting, and data centers as they were becoming more popular topics in the tech industry. Erdem Yasar also worked with various industry-leading tech companies as a content creator by writing blog posts and other articles. Prior to his role at Cloud7, Erdem was the managing editor of T3 Magazine.

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