CVE-2018-6982 — VMware ESXi 6.7 without ESXi670-201811401-BG and VMware ESXi 6.5 without ESXi650-201811301-BG contain uninitialized stack memory usage in the vmxnet3 virtual network adapter which may lead to an information leak from host to guest

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MEDIUM

VMware ESXi 6.7 without ESXi670-201811401-BG and VMware ESXi 6.5 without ESXi650-201811301-BG contain uninitialized stack memory usage in the vmxnet3 virtual network adapter which may lead to an information leak from host to guest

Published Dec 4, 2018

6.5

MEDIUM

CVSS 3.1

EPSS 0.45%

Description

VMware ESXi 6.7 without ESXi670-201811401-BG and VMware ESXi 6.5 without ESXi650-201811301-BG contain uninitialized stack memory usage in the vmxnet3 virtual network adapter which may lead to an information leak from host to guest.

Affected products

Vendor VMware Product VMware ESXi Default
n/a
- Version
  VMware ESXi 6.7 without ESXi670-201811401-BG, VMware ESXi 6.5 without ESXi650-201811301-BG
  Status
  affected
  Constraints
  -

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor

Product

Default status

Versions

VMware

VMware ESXi

n/a

Version	Status	Constraints
VMware ESXi 6.7 without ESXi670-201811401-BG, VMware ESXi 6.5 without ESXi650-201811301-BG	affected	-

Remediation

No remediation recorded yet.

Metrics

0.45% 0.00452

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.

EPSS probability 0.00452

Score over time

2021–2026

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Percentile over time

EPSS v1
EPSS v5
EPSS v2
EPSS v3

Table of values (10 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 1, 2026	0.45% (0.00452)	36.93th	v5 (v2026.06.15)
Sep 20, 2026	0.45% (0.00452)	38.59th	v5 (v2026.06.15)
Jul 20, 2024	0.05% (0.00051)	20.49th	v3 (v2023.03.01)
Jun 6, 2024	0.05% (0.00051)	19.72th	v3 (v2023.03.01)
Nov 28, 2023	0.05% (0.00051)	17.71th	v3 (v2023.03.01)
Mar 7, 2023	0.05% (0.00047)	14.26th	v3 (v2023.03.01)
Mar 6, 2023	0.89% (0.00890)	30.33th	v2 (v2022.01.01)
Feb 4, 2022	0.89% (0.00890)	12.04th	v2 (v2022.01.01)
Feb 3, 2022	0.12% (0.00123)	0.41th	v5 (v2026.06.15)
Apr 14, 2021	0.12% (0.00123)	0.00th	v1

Weaknesses (1)

CWE-908

References (3)

http://www.securityfocus.com/bid/105882
vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042055
vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://www.vmware.com/security/advisories/VMSA-2018-0027.html
x_refsource_CONFIRMVendor Advisory

Link	Providers	Tags
http://www.securityfocus.com/bid/105882		vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1042055		vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
https://www.vmware.com/security/advisories/VMSA-2018-0027.html		x_refsource_CONFIRMVendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner vmware

Published Dec 4, 2018

Updated Aug 5, 2024

Reserved Feb 14, 2018

Link CVE-2018-6982

CISA Vulnrichment

Updated n/a

NVD

Status Modified

Modified Jun 17, 2026

Link CVE-2018-6982

Red Hat

Severity n/a

Public date n/a

Links CVE-2018-6982