CVE-2021-46901: Cetic Cetic-6lbr

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

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.

Affected products

• Cetic Cetic-6lbr: version 1.5.0 only

Published 2023-12-31. Last modified 2026-06-17.