Is CVE-2026-34960 actively exploited?

No active exploitation of CVE-2026-34960 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-34960 be exploited remotely?

Partially. CVE-2026-34960 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2026-34960?

CVE-2026-34960 has a CVSS score of 6.5 (MEDIUM).

HOME VULNERABILITIESCVE-2026-34960

MEDIUM

CVE-2026-34960

CWE-125Published: May 11, 2026· Updated: May 16, 2026

6.5

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-34960 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 6.5.