CVE-2018-6970

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-08-13 · updated 2026-06-17
Weakness: CWE-125

Description

VMware Horizon 6 (6.x.x before 6.2.7), Horizon 7 (7.x.x before 7.5.1), and Horizon Client (4.x.x and prior before 4.8.1) contain an out-of-bounds read vulnerability in the Message Framework library. Successfully exploiting this issue may allow a less-privileged user to leak information from a privileged process running on a system where Horizon Connection Server, Horizon Agent or Horizon Client are installed. Note: This issue doesn't apply to Horizon 6, 7 Agents installed on Linux systems or Horizon Clients installed on non-Windows systems.

Affected products

VMware Horizon Server: from 4.0.0 before 4.8.1 — fixed in 4.8.1
VMware Horizon View: from 6.0.0 before 6.2.7; from 7.0.0 before 7.5.1 — fixed in 6.2.7, 7.5.1

How to fix

Upgrade to a fixed version: VMware Horizon Server 4.8.1; VMware Horizon View 6.2.7, 7.5.1. Check the vendor advisory for mitigations.

References

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