{"id":"CVE-2023-51391","aliases":["EUVD-2023-56112","GHSA-j435-3f42-ww7p"],"status":"published","title":"Micrium OS Network uC-HTTP server header parsing invalid pointer dereference vulnerability","description":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.","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":"2026-11-11","score":0.00794,"percentile":0.5684,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-125","CWE-476"],"published":"2024-04-16T19:19:26Z","modified":"2026-10-28T02:30:22Z","products":[{"vendor":"silabs","product":"gecko_software_development_kit"}],"references":[{"url":"https://community.silabs.com/068Vm000004688g","tags":["x_transferred","web"]},{"url":"https://www.talosintelligence.com/vulnerability_reports/TALOS-2024-1945","tags":["x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-51391","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-j435-3f42-ww7p"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/51xxx/CVE-2023-51391.json","tags":["advisory"]},{"url":"https://github.com/SiliconLabs/gecko_sdk","tags":["package"]},{"url":"https://github.com/SiliconLabs/gecko_sdk/releases","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-51391","title":"Micrium OS Network uC-HTTP server header parsing invalid pointer dereference vulnerability","description":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.","status":"published","published":"2024-04-16T19:19:26.502Z","modified":"2025-02-13T17:19:44.183Z","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","CWE-125"],"updated_at":"2026-11-02T14:35:17.48054Z"}],"euvd":[{"id":"EUVD-2023-56112","description":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.","status":"published","published":"2024-04-16T19:19:26Z","modified":"2025-02-13T17:19:44Z","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":"2026-11-03T00:03:48.029386Z"}],"ghsa":[{"id":"GHSA-j435-3f42-ww7p","title":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header...","description":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.","status":"published","published":"2024-04-16T21:31:28Z","modified":"2024-04-18T09:30:45Z","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-125"],"updated_at":"2026-11-02T14:57:13.502248Z"}],"nvd":[{"id":"CVE-2023-51391","description":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.","status":"published","published":"2024-04-16T20:15:09.437Z","modified":"2026-06-17T06:40:51.92Z","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"}],"cwes":["CWE-125","CWE-476"],"updated_at":"2026-11-02T14:09:11.362739Z"}],"osv":[{"id":"CVE-2023-51391","title":"Micrium OS Network uC-HTTP server header parsing invalid pointer dereference vulnerability","description":"A bug in Micrium OS Network HTTP Server permits an invalid pointer dereference during header processing - potentially allowing a device crash and Denial of Service.","status":"published","published":"2024-04-16T19:19:26.502Z","modified":"2026-10-28T02:30:22.504414627Z","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-125","CWE-476"],"updated_at":"2026-11-02T15:44:35.245372Z"}]}}