{"id":"CVE-2021-46901","aliases":["EUVD-2021-33549","GHSA-hh37-43rq-667r"],"status":"published","title":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based...","description":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based buffer overflow via a request for a long URL over a 6LoWPAN network.","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":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00659,"percentile":0.51982,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-787"],"published":"2023-12-31T00:00:00Z","modified":"2026-06-17T04:15:47Z","products":[{"vendor":"cetic","product":"cetic-6lbr"}],"references":[{"url":"https://github.com/cetic/6lbr/issues/414","tags":["x_transferred","Exploit","Issue Tracking","Vendor Advisory"]},{"url":"https://github.com/cetic/6lbr/blob/c3092a1ccc6b6b0e668f33f6f4b2d6967975d664/examples/6lbr/apps/6lbr-webserver/httpd.c#L119","tags":["x_transferred","Patch"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-46901"},{"url":"https://github.com/advisories/GHSA-hh37-43rq-667r"}],"sources":{"cve":[{"id":"CVE-2021-46901","description":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based buffer overflow via a request for a long URL over a 6LoWPAN network.","status":"published","published":"2023-12-31T00:00:00Z","modified":"2024-08-04T05:17:42.997Z","updated_at":"2026-11-02T14:33:03.320536Z"}],"euvd":[{"id":"EUVD-2021-33549","description":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based buffer overflow via a request for a long URL over a 6LoWPAN network.","status":"published","published":"2023-12-31T00:00:00Z","modified":"2024-08-04T05:17:42Z","updated_at":"2026-11-03T03:08:22.448202Z"}],"ghsa":[{"id":"GHSA-hh37-43rq-667r","title":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based...","description":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based buffer overflow via a request for a long URL over a 6LoWPAN network.","status":"published","published":"2023-12-31T09:30:35Z","modified":"2024-01-08T21:30:27Z","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-787"],"updated_at":"2026-11-02T14:55:21.919096Z"}],"nvd":[{"id":"CVE-2021-46901","description":"examples/6lbr/apps/6lbr-webserver/httpd.c in CETIC-6LBR (aka 6lbr) 1.5.0 has a strcat stack-based buffer overflow via a request for a long URL over a 6LoWPAN network.","status":"published","published":"2023-12-31T07:15:07.443Z","modified":"2026-06-17T04:15:47.503Z","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":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}