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**Name of the Vulnerable Software and Affected Versions** LibNyoci version 0.07.00rc1 **Description** The issue is related to the `coap decode option` function in `coap.c`, which mishandles certain packets containing `Uri-Path: (null)`. This mishandling allows remote attackers to cause a denial of service, resulting in a segmentation fault. **Recommendations** For LibNyoci version 0.07.00rc1, consider disabling the `coap decode option` function as a temporary workaround until a patch is available. Restrict access to the `coap.c` module to minimize the risk of exploitation. Avoid using packets with `Uri-Path: (null)` in the affected API endpoint until the issue is resolved.