8.8

CVE-2017-4933: vmware esxi Out-of-bounds Write

CVSS: 8.8v3.1HighModified
Published 20-12-2017Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2017-4933 is a high (CVSS 8.8) Out-of-bounds Write vulnerability in vmware esxi. EPSS estimates a 3.57% chance of exploitation in the next 30 days, higher than 89.2% of scored vulnerabilities.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
3.57%
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. 20-12-2017
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

VMware ESXi (6.5 before ESXi650-201710401-BG), Workstation (12.x before 12.5.8), and Fusion (8.x before 8.5.9) contain a vulnerability that could allow an authenticated VNC session to cause a heap overflow via a specific set of VNC packets resulting in heap corruption. Successful exploitation of this issue could result in remote code execution in a virtual machine via the authenticated VNC session. Note: In order for exploitation to be possible in ESXi, VNC must be manually enabled in a virtual machine's .vmx configuration file. In addition, ESXi must be configured to allow VNC traffic through the built-in firewall.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

3.57%

Chance of exploitation in the next 30 days

Percentile

89%

Versus all other CVEs

30-day change

0.00 pp

From 3.57% on 18-09-2026

18-09-202618-10-2026
EPSS score
3.57%

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

Vmware4 products
  • esxiEOL6.5 before ESXi650-201710401-BG | 6.5 | 6.5:650-201701001 | 6.5:650-201703001 | 6.5:650-201703002 | 6.5:650-201704001 | 6.5:650-201707101 | 6.5:650-201707102 | 6.5:650-201707103 | 6.5:650-201707201 | 6.5:650-201707202 | 6.5:650-201707203 | 6.5:650-201707204 | 6.5:650-201707205 | 6.5:650-201707206 | 6.5:650-201707207 | 6.5:650-201707208 | 6.5:650-201707209 | 6.5:650-201707210 | 6.5:650-201707211 | 6.5:650-201707212 | 6.5:650-201707213 | 6.5:650-201707214 | 6.5:650-201707215 | 6.5:650-201707216 | 6.5:650-201707217 | 6.5:650-201707218 | 6.5:650-201707219 | 6.5:650-201707220 | 6.5:650-201707221 | 6.5:650-201710001
  • fusion8.x before 8.5.9 | ≥ 8.0.0, < 8.5.9
  • workstation12.x before 12.5.8
  • workstation_pro≥ 12.0.0, < 12.5.8 | 14.0 | 14.1.0

1 vendor · 4 products

References

3 links