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Vulnerability record · CVE-2024-20040 · published 1 April 2024

CVE-2024-20040: Linuxfoundation yocto out-of-bounds write vulnerability

Linuxfoundation · Yocto

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.

8.8 CVSS 3.1 High EPSS 0.18% · top 93.4% CWE-787 · Out-of-bounds write
8.8CVSS 3.1 base score
0.18%EPSS exploitation probability, 30 days
NoNot in CISA KEV
5Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

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.

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

Affected products

5 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2024-20040), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.