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CVE Vulnerability Details :
CVE-2026-34960
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-11 May, 2026 | 20:49
Updated At-12 May, 2026 | 14:27
Rejected At-
▼CVE Numbering Authority (CNA)
barebox Out-of-Bounds Read in DHCP Option Parsing

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
Vendor
barebox
Product
barebox
Default Status
unaffected
Versions
Affected
  • From 0 through 2026.04.0 (git)
Problem Types
TypeCWE IDDescription
CWECWE-125CWE-125 Out-of-bounds Read
Type: CWE
CWE ID: CWE-125
Description: CWE-125 Out-of-bounds Read
Metrics
VersionBase scoreBase severityVector
3.16.5MEDIUM
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
4.07.1HIGH
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
Version: 3.1
Base score: 6.5
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Version: 4.0
Base score: 7.1
Base severity: HIGH
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc.
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/barebox/barebox
product
https://github.com/barebox/barebox/releases/tag/v2026.04.0
patch
https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsing
third-party-advisory
Hyperlink: https://github.com/barebox/barebox
Resource:
product
Hyperlink: https://github.com/barebox/barebox/releases/tag/v2026.04.0
Resource:
patch
Hyperlink: https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsing
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Details not found