{"id":"CVE-2023-24822","aliases":["EUVD-2023-28816","GHSA-8x69-5fhj-72wh"],"status":"published","title":"RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding","description":"RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference while encoding a 6LoWPAN IPHC header. The NULL pointer dereference causes a hard fault exception, leading to denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00859,"percentile":0.58732,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-476"],"published":"2023-04-24T15:24:26Z","modified":"2026-11-07T02:46:18Z","products":[{"vendor":"riot-os","product":"riot"}],"references":[{"url":"https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-8x69-5fhj-72wh","tags":["x_refsource_CONFIRM","x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://github.com/RIOT-OS/RIOT/pull/18817/commits/639c04325de4ceb9d444955f4927bfae95843a39","tags":["x_refsource_MISC","x_transferred","Patch","web"]},{"url":"https://github.com/RIOT-OS/RIOT/pull/18820/commits/7253e261556f252816f4a3b7c4f96fc10d642485","tags":["x_refsource_MISC","x_transferred","Patch","web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/24xxx/CVE-2023-24822.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-24822","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2023-24822","title":"RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding","description":"RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference while encoding a 6LoWPAN IPHC header. The NULL pointer dereference causes a hard fault exception, leading to denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.","status":"published","published":"2023-04-24T15:24:26.836Z","modified":"2025-02-04T18:56:00.229Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:35:27.006218Z"}],"euvd":[{"id":"EUVD-2023-28816","description":"RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference while encoding a 6LoWPAN IPHC header. The NULL pointer dereference causes a hard fault exception, leading to denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.","status":"published","published":"2023-04-24T15:24:26Z","modified":"2025-02-04T18:56:00Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:05.9572Z"}],"nvd":[{"id":"CVE-2023-24822","description":"RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference while encoding a 6LoWPAN IPHC header. The NULL pointer dereference causes a hard fault exception, leading to denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.","status":"published","published":"2023-04-24T16:15:07.69Z","modified":"2026-06-17T05:39:56.053Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-476"],"updated_at":"2026-11-02T14:07:56.683259Z"}],"osv":[{"id":"CVE-2023-24822","title":"RIOT-OS vulnerable to Null Pointer dereference during IPHC encoding","description":"RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. Prior to version 2022.10, an attacker can send a crafted frame to the device resulting in a NULL pointer dereference while encoding a 6LoWPAN IPHC header. The NULL pointer dereference causes a hard fault exception, leading to denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patches manually.","status":"published","published":"2023-04-24T15:24:26.836Z","modified":"2026-11-07T02:46:18.606669255Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-476"],"updated_at":"2026-11-07T03:07:49.870704Z"}]}}