CVE-2019-11867: Realtek Ndis

Medium severity, CVSS 5.5. EPSS: 0.3% chance of exploitation in the next 30 days.

Realtek NDIS driver rt640x64.sys, file version 10.1.505.2015, fails to do any size checking on an input buffer from user space, which the driver assumes has a size greater than zero bytes. To exploit this vulnerability, an attacker must send an IRP with a system buffer size of 0.

Affected products

• Realtek Ndis: version 10.1.505.2015 only

Published 2020-02-12. Last modified 2026-06-17.