CVE-2026-34960

Published: Mag 12, 2026 Last Modified: Mag 12, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,1
Source: [email protected]
Attack Vector: adjacent
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
MEDIUM 6,5
Source: [email protected]
Attack Vector: adjacent_network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

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.

125

Out-of-bounds Read

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Confidentiality Availability Other
Potential Impacts:
Read Memory Bypass Protection Mechanism Dos: Crash, Exit, Or Restart Varies By Context
Applicable Platforms
Languages: C, C++, Memory-Unsafe
Technologies: ICS/OT
View CWE Details
https://github.com/barebox/barebox
https://github.com/barebox/barebox
https://github.com/barebox/barebox/releases/tag/v2026.04.0
https://github.com/barebox/barebox/releases/tag/v2026.04.0
https://www.vulncheck.com/advisories/barebox-out-of-bounds-…
https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-…