CVE-2024-42040 - Vulnerability Details

Related Threat Clusters

• Multiple Vulnerabilities in Cybersecurity Affecting Network Protocols

  Two vulnerabilities have been reported affecting network protocols. CVE-2024-42040, a buffer overflow in DENEX U-Boot, allows local network attackers to leak memory ranging from 4 to 32 bytes. CVE-2019-19076, a memory…

  2 articles · Updated February 18, 2026
• Critical U-Boot Vulnerabilities Affect Ubuntu 24.04 LTS

  Ubuntu 24.04 LTS and its derivatives are affected by critical vulnerabilities in U-Boot, a boot loader for embedded systems. An attacker on the local network could exploit these issues to obtain sensitive memory…

  2 articles · Updated February 23, 2026

Recent Intelligence Reports

• Ubuntu 24.04 LTS U-Boot Critical Denial of Service Threat USN-8056 — Linuxsecurity · February 23, 2026
• USN-8056-1: U — Ubuntu · February 23, 2026
• CVE-2024-42040 Buffer Overflow vulnerability in the net/bootp.c in DENEX U-Boot from its initial commit in 2002 (3861aa5) up to today on any platform allows an attacker on the local network to leak memory from four up to 32 bytes of memory stored behind the packet to the network depending on the later use of DHCP — Api.Msrc.Microsoft · February 18, 2026

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