CVE-2019-5527

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-10-10 · updated 2026-06-17
Weakness: CWE-416

Description

ESXi, Workstation, Fusion, VMRC and Horizon Client contain a use-after-free vulnerability in the virtual sound device. VMware has evaluated the severity of this issue to be in the Important severity range with a maximum CVSSv3 base score of 8.5.

Affected products

VMware ESXi: 6.0-1, 6.0-1a, 6.0-1b, 6.0-2, 6.0-3, 6.0-3a (+170); 6.0, 6.5, 6.7
VMware Fusion: from 11.0.0 before 11.5.0 — fixed in 11.5.0
VMware Horizon Agent for Linux: before 5.2.0 — fixed in 5.2.0
VMware Remote Console: from 10.0.0 before 10.0.5 — fixed in 10.0.5
VMware Workstation: from 15.0.0 before 15.5.0 — fixed in 15.5.0
ESXi, Workstation, Fusion, VMRC and Horizon Client: through ESXi 6.7. 6.5, 6.0, Workstation 15.x, Fusion 11.x, VMRC 10.x and Horizon Client 5.x

How to fix

Upgrade to a fixed version: VMware Fusion 11.5.0; VMware Horizon Agent for Linux 5.2.0; VMware Remote Console 10.0.5; VMware Workstation 15.5.0. Check the vendor advisory for mitigations.

References

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