CVSS 3.1 Score 7.5 of 10 (high)


Published Feb 14, 2024
Updated: Feb 15, 2024
CWE ID 125


CVE-2023-50926 is a vulnerability in the Contiki-NG operating system for Next-Generation IoT devices. It is caused by an out-of-bounds read that occurs when processing an incoming DIO message using the RPL-Lite implementation. The issue arises from the validation of the length field in the IPv6 address prefix, allowing an attacker to set a value longer than the maximum length. This leads to an out-of-bounds read in a memcmp function call, potentially causing a security breach. The problem has been patched in the "develop" branch of Contiki-NG, and users are advised to update or manually apply the changes in Contiki-NG pull request #2721. The vulnerability has a high severity rating and can be exploited over a network without requiring any privileges or user interaction, posing a significant risk to organizations using affected versions of Contiki-NG.

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