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.

Project Subscriptions

Vendors Products
Barebox Subscribe
Barebox Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Tue, 12 May 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 12 May 2026 00:00:00 +0000

Type Values Removed Values Added
First Time appeared Barebox
Barebox barebox
Vendors & Products Barebox
Barebox barebox

Mon, 11 May 2026 21:30:00 +0000

Type Values Removed Values Added
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.
Title barebox Out-of-Bounds Read in DHCP Option Parsing
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 7.1, 'vector': 'CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-05-12T14:27:53.205Z

Reserved: 2026-03-31T17:58:43.754Z

Link: CVE-2026-34960

cve-icon Vulnrichment

Updated: 2026-05-12T13:21:02.236Z

cve-icon NVD

Status : Received

Published: 2026-05-11T22:22:10.847

Modified: 2026-05-11T22:22:10.847

Link: CVE-2026-34960

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-11T23:45:02Z

Weaknesses