CVE-2018-6982

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-12-04 · updated 2026-06-17
Weakness: CWE-908

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

VMware ESXi: 6.0-1, 6.0-1a, 6.0-1b, 6.0-2, 6.0-3, 6.0-3a (+156); 6.0, 6.5, 6.7
VMware Fusion: from 10.0.0 before 10.1.4; 11.0.0 (and their updates) — fixed in 10.1.4
VMware Workstation: from 14.0.0 before 14.1.4; 15.0.0 (and their updates) — fixed in 14.1.4
VMware ESXi: VMware ESXi 6.7 without ESXi670-201811401-BG, VMware ESXi 6.5 without ESXi650-201811301-BG

How to fix

Upgrade to a fixed version: VMware Fusion 10.1.4; VMware Workstation 14.1.4. Check the vendor advisory for mitigations.

References

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