CVE-2024-20040

Name: CVE-2024-20040
Creator: NVD / NIST
Published: 2024-04-01T03:15:07.847+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.18%

Last modified Jun 17, 2026

CVE-2024-20040 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. In wlan firmware, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. EPSS estimates a 0.18% chance of exploitation in the next 30 days.

Description

In wlan firmware, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS08360153 (for MT6XXX chipsets) / WCNCR00363530 (for MT79XX chipsets); Issue ID: MSV-979.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.18%

7.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Linuxfoundation	Yocto	3.3
Linuxfoundation	Yocto	4.0
Rdkcentral	Rdk-B	2022q3
Google	Android	12.0
Google	Android	13.0
Google	Android	14.0
Linux	Linux Kernel	4.19
Openwrt	Openwrt	19.07.0
Openwrt	Openwrt	21.02.0

References

https://corp.mediatek.com/product-security-bulletin/April-2024Vendor Advisory
https://corp.mediatek.com/product-security-bulletin/April-2024Vendor Advisory

Timeline

Published: Apr 1, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2024-20040?

How severe is CVE-2024-20040?

CVE-2024-20040 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.

How do I fix CVE-2024-20040?

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-2024-20040?

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

Scan your code now

Source: NVD / NIST