CVE-2019-11867

low-risk

Published 2020-02-12

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.

Do I need to act?

0.12% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 5.5/10 Medium

LOCAL / LOW complexity

Affected Products (1)

Ndis

Affected Vendors

Realtek

References (4)

Third Party Advisory https://downwithup.github.io/CVEPosts.html

Vendor Advisory https://www.realtek.cz/realtek-network-drivers.html

Third Party Advisory https://downwithup.github.io/CVEPosts.html

Vendor Advisory https://www.realtek.cz/realtek-network-drivers.html

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low-risk

Severity 18/34 · Moderate

Exploitability 1/34 · Minimal

Exposure 5/34 · Minimal