Improper input validation in Apple Mac OS X

CVE-2020-3999

VMware ESXi (7.0 prior to ESXi70U1c-17325551), VMware Workstation (16.x prior to 16.0 and 15.x prior to 15.5.7), VMware Fusion (12.x prior to 12.0 and 11.x prior to 11.5.7) and VMware Cloud Foundation contain a denial of service vulnerability due to improper input validation in GuestInfo. A malicious actor with normal user privilege access to a virtual machine can crash the virtual machine's vmx process leading to a denial of service condition.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.004 (29.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 30th percentile — 29.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2020-3999: held from 0.003 to 0.004.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.000

Affected products

  • Apple Mac OS X
  • VMware Esxi — versions 7.0
  • VMware Fusion
  • VMware Workstation
  • VMware Esxi, Workstation,vmware Fusion And Cloud Foundation — versions VMware ESXi (7.0 prior to ESXi70U1c-17325551), VMware Workstation (16.x prior to 16.0 and 15.x prior to 15.5.7)and VMware Fusion (12.x prior to 12.0 and 11.x prior to 11.5.7)

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-3999?
CVE-2020-3999 is a medium-severity vulnerability in Apple Mac OS X, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2020-12-21.
How severe is CVE-2020-3999?
Medium severity. CVSS v3 base score is 6.5 out of 10.