CVE-2026-34960
🔶 mediumSummary
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
6.5
Medium
EPSS Score
0.3
Exploit Probability
Published Date
2026-05-11
First Seen: 2026-05-12
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 46.6% of all 365,890 vulnerabilities in our database.
#195,497
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 12, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Kazuma Matsumoto, a security researcher at GMO Cybersecurity by IERAE, Inc.
SSVC data provided by
CISA
Last Modified
2026-07-18
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Vector 4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)