CVE-2020-3963

high-risk

Published 2020-06-25

VMware ESXi (7.0 before ESXi_7.0.0-1.20.16321839, 6.7 before ESXi670-202006401-SG and 6.5 before ESXi650-202005401-SG), Workstation (15.x before 15.5.2), and Fusion (11.x before 11.5.2) contain a use-after-free vulnerability in PVNVRAM. A malicious actor with local access to a virtual machine may be able to read privileged information contained in physical memory.

Do I need to act?

0.11% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (20)

Cloud Foundation

Fusion

Workstation

Esxi

Affected Vendors

Vmware

References (6)

Exploit http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bo...

Exploit http://seclists.org/fulldisclosure/2020/Jul/22

Vendor Advisory https://www.vmware.com/security/advisories/VMSA-2020-0015.html

Exploit http://packetstormsecurity.com/files/158459/VMware-ESXi-Use-After-Free-Out-Of-Bo...

Exploit http://seclists.org/fulldisclosure/2020/Jul/22

Vendor Advisory https://www.vmware.com/security/advisories/VMSA-2020-0015.html

/ 100

high-risk

Severity 18/34 · Moderate

Exploitability 0/34 · Minimal

Exposure 33/34 · Critical