barebox Out-of-Bounds Read in DHCP Option Parsing_CVE-2026-34960

6.5 / 10

MEDIUM

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Basic Information

ID CVE-2026-34960

Source VulnCheck

Published May 11, 2026 at 20:49

Affected Product

Vendor barebox

Product barebox

Affected Versions barebox barebox 0

CWE Classification

CWE-125

References

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    "published": "2026-05-11T20:49:01.966Z",
    "modified": "2026-05-11T20:49:01.966Z",
    "type": "cve",
    "title": "barebox Out-of-Bounds Read in DHCP Option Parsing",
    "source": "VulnCheck",
    "references": "https://github.com/barebox/barebox\nhttps://github.com/barebox/barebox/releases/tag/v2026.04.0\nhttps://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsing",
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