CVE-2026-34960

Description

barebox prior to version 2026.04.0 contains an out-of-bounds read vulnerability in DHCP option parsing within the dhcp_message_type() function that fails to verify the options pointer remains within received packet bounds. An attacker on the same broadcast domain can send a crafted DHCP Offer or ACK packet without a proper 0xff end marker to cause the parser to read past valid packet data and potentially crash the system.

References

https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsing

https://github.com/barebox/barebox/releases/tag/v2026.04.0

https://github.com/barebox/barebox

Details

Source: Mitre, NVD

Risk Information

CVSS v2

CVSS v3

CVSS v4