Medium severity6.5NVD Advisory· Published May 11, 2026· Updated May 16, 2026
CVE-2026-34960
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.
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Affected products
2Patches
Vulnerability mechanics
References
2- www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsingnvdThird Party Advisory
- github.com/barebox/barebox/releases/tag/v2026.04.0nvdRelease Notes
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