https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-21T12:38:21.719734+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2021-21281 CVE-2021-21281 — Buffer overflow due to unvalidated TCP data offset 2026-10-21T12:38:21.720981+00:00

Affected: contiki-ng

Contiki-NG is an open-source, cross-platform operating system for internet of things devices. A buffer overflow vulnerability exists in Contiki-NG versions prior to 4.6. After establishing a TCP socket using the tcp-socket library, it is possible for the remote end to send a packet with a data offset that is unvalidated. The problem has been patched in Contiki-NG 4.6. Users can apply the patch for this vulnerability out-of-band as a workaround.