Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pengutronix | Barebox | < 2026.04.0 |
Related Weaknesses (CWE)
References
- https://github.com/barebox/bareboxProduct
- https://github.com/barebox/barebox/releases/tag/v2026.04.0Release Notes
- https://www.vulncheck.com/advisories/barebox-out-of-bounds-read-in-dhcp-option-pThird Party Advisory
FAQ
What is CVE-2026-34960?
CVE-2026-34960 is a vulnerability with a CVSS score of 6.5 (MEDIUM). 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 r...
How severe is CVE-2026-34960?
CVE-2026-34960 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-34960?
Check the references section above for vendor advisories and patch information. Affected products include: Pengutronix Barebox.