6.5

CVE-2020-3999: vmware esxi Improper Input Validation

CVSS: 6.5v3.1MediumAnalyzed
Published 21-12-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-3999 is a medium (CVSS 6.5) Improper Input Validation vulnerability in vmware esxi. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.7% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.38%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 21-12-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.38%

Chance of exploitation in the next 30 days

Percentile

31%

Versus all other CVEs

30-day change

0.00 pp

From 0.38% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.38%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Vmware3 products
  • esxiEOL7.0 | 7.0:beta | 7.0:update_1 | 7.0:update_1a | 7.0:update_1b
  • fusion≥ 11.5.0, < 11.5.7
  • workstation≥ 15.0.0, < 15.5.7

1 vendor · 3 products

References

1 links