{"api_version":"1","generated_at":"2026-07-23T14:48:07+00:00","cve":"CVE-2023-33973","urls":{"html":"https://cve.report/CVE-2023-33973","api":"https://cve.report/api/cve/CVE-2023-33973.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2023-33973","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-33973"},"summary":{"title":"CVE-2023-33973","description":"RIOT-OS, an operating system for Internet of Things (IoT) devices, contains a network stack with the ability to process 6LoWPAN frames. In versions 2023.01 and prior, an attacker can send a crafted frame which is forwarded by the device. During encoding of the packet a NULL pointer dereference occurs. This crashes the device leading to denial of service. A patch is available at pull request 19678. 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