CVE-2024-40431

Name: CVE-2024-40431
Creator: NVD / NIST
Published: 2024-10-23T22:15:02.34+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.27%

Last modified Jun 17, 2026

CVE-2024-40431 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A lack of input validation in Realtek SD card reader driver before 10.0.26100.21374 through the implementation of the IOCTL_SCSI_PASS_THROUGH control of the SD card reader driver allows an attacker to write to predictable kernel memory locations, even as a low-privileged user.. EPSS estimates a 1.27% chance of exploitation in the next 30 days.

Description

A lack of input validation in Realtek SD card reader driver before 10.0.26100.21374 through the implementation of the IOCTL_SCSI_PASS_THROUGH control of the SD card reader driver allows an attacker to write to predictable kernel memory locations, even as a low-privileged user.

Metrics

CVSS 3.1

8.8/10

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

1.27%

66.1th percentile

Probability of exploitation in the next 30 days. Learn more

References

https://zwclose.github.io/2024/10/14/rtsper1.html

Timeline

Published: Oct 23, 2024
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2024-40431?

How severe is CVE-2024-40431?

CVE-2024-40431 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.27% probability of exploitation in the next 30 days.

How do I fix CVE-2024-40431?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2024-40431?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST