CVE-2026-34960: Pengutronix Barebox

Medium severity, CVSS 6.5. EPSS: 0.4% chance of exploitation in the next 30 days.

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.

Affected products

• Pengutronix Barebox: before 2026.04.0 (fixed in 2026.04.0)

Published 2026-05-11. Last modified 2026-07-18.