CVE-2024-20040
CVE-2024-20040 is a high-severity vulnerability in Linuxfoundation Yocto with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 0% (7th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-17755
- Weakness: CWE-787
- Affected product: Linuxfoundation Yocto
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2024-20040?
- 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.
- How severe is CVE-2024-20040?
- CVE-2024-20040 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-20040 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-20040?
- CVE-2024-20040 primarily affects Linuxfoundation Yocto. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2024-20040?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-20040 have an EU (EUVD) identifier?
- Yes. CVE-2024-20040 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-17755.
- When was CVE-2024-20040 published?
- CVE-2024-20040 was published on 2024-04-01 and last updated on 2026-06-17.
References
Affected products (9)
- cpe:2.3:a:linuxfoundation:yocto:3.3:*:*:*:*:*:*:*
- cpe:2.3:a:linuxfoundation:yocto:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:rdkcentral:rdk-b:2022q3:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:12.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*
- cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:4.19:-:*:*:*:*:*:*
- cpe:2.3:o:openwrt:openwrt:19.07.0:-:*:*:*:*:*:*
- cpe:2.3:o:openwrt:openwrt:21.02.0:-:*:*:*:*:*:*
More vulnerabilities in Linuxfoundation Yocto
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- CVE-2024-20146 — High (CVSS 8.1): In wlan STA driver, there is a possible out of bounds write due to improper input validation. This could lead to remote…
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