Is CVE-2024-41126 actively exploited?

No active exploitation of CVE-2024-41126 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2024-41126 be exploited remotely?

Partially. CVE-2024-41126 requires adjacent network access (same network segment) to exploit.

What is the CVSS score of CVE-2024-41126?

CVE-2024-41126 has a CVSS score of 9.6 (CRITICAL).

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CRITICAL

CVE-2024-41126

CWE-125Published: November 27, 2024· Updated: Jun 17, 2026

9.6

CVSS v3.1

Official Description

Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte can be triggered when sending a packet to a device running the Contiki-NG operating system with SNMP enabled. The SNMP module is disabled in the default Contiki-NG configuration. The vulnerability exists in the os/net/app-layer/snmp/snmp-message.c module, where the snmp_message_decode function fails to check the boundary of the message buffer when reading a byte from it immediately after decoding an object identifier (OID). The problem has been patched in Contiki-NG pull request 2937. It will be included in the next release of Contiki-NG. Users are advised to either apply the patch manually or to wait for the next release. A workaround is to disable the SNMP module in the Contiki-NG build configuration.

NVD Source

Technical Analysis

CVE-2024-41126 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 complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.6.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.