CVE-2020-3957
7.0 · HIGHOverview
CVE-2020-3957 is a high-severity vulnerability affecting vmware fusion. It was published on May 29, 2020 and has a CVSS 3.1 base score of 7.0 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
Technical Description
VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior) and VMware Horizon Client for Mac (5.x and prior) contain a local privilege escalation vulnerability due to a Time-of-check Time-of-use (TOCTOU) issue in the service opener. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC and Horizon Client are installed.
Remediation
Check the references section for vendor advisories and patches from vmware. Update fusion to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| vmware | fusion | >= 11.0.0, < 11.5.5 | Affected |
| vmware | horizon_client | 0 | Affected |
| vmware | remote_console | 0 | Affected |
Frequently Asked Questions
What is CVE-2020-3957?
CVE-2020-3957 is a high-severity vulnerability affecting vmware fusion. It was published on May 29, 2020 and has a CVSS 3.1 base score of 7.0 (HIGH).
How severe is CVE-2020-3957?
This vulnerability has a CVSS 3.1 base score of 7.0, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2020-3957?
Check the references section for vendor advisories and patches from vmware. Update fusion to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-3957?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-3957 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
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