CVE-2024-42040
highpriority · track · 0EPSS 0.006 · 48 %ileEUUSEPSS · scored 2026-10-27
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-provided parameters via crafted DHCP responses.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (9)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2024-42040/cnnvd
- https://github.com/u-boot/u-boot/tagscnnvd
- https://vigilance.fr/vulnerability/DENEX-U-Boot-memory-leak-via-DHCP-49767cnnvd
- https://www.schutzwerk.com/advisories/SCHUTZWERK-SA-2024-004.txtcnnvd
- https://github.com/u-boot/u-boot/tagsenisa_euvd
- https://www.schutzwerk.com/advisories/SCHUTZWERK-SA-2024-004.txtenisa_euvd
- http://seclists.org/fulldisclosure/2024/Aug/38Mailing ListMitigationThird Party Advisorynvd
- https://github.com/u-boot/u-boot/tagsRelease Notesnvd
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