CVE-2026-34960
mediumpriority · track · 0EPSS 0.003 · 16 %ileEUUSEPSS · scored 2026-10-28
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–7.1
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://github.com/barebox/barebox/releases/Patchcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2026-34960cnnvd
- https://github.com/barebox/bareboxenisa_euvd
- https://github.com/barebox/barebox/releases/tag/v2026.04.0enisa_euvd
- https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-parsingenisa_euvd
- https://y637f9qq2x.com/posts/barebox-sandbox-vulns/enisa_euvd
- https://github.com/barebox/bareboxProductnvd
- https://github.com/barebox/barebox/releases/tag/v2026.04.0Release Notesnvd
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