CVE-2021-21282: contiki-ng

csirt@kutim:~/threat-intel/cve/CVE-2021-21282

CVSS 9.8 · Critical EPSS 0,99%

Kerentanan Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') pada contiki-ng. Skor CVSS 3.1 9.8 (Critical) menurut NVD.

Deskripsi (NVD)

Contiki-NG is an open-source, cross-platform operating system for internet of things devices. In versions prior to 4.5, buffer overflow can be triggered by an input packet when using either of Contiki-NG's two RPL implementations in source-routing mode. The problem has been patched in Contiki-NG 4.5. Users can apply the patch for this vulnerability out-of-band as a workaround.

Rincian

Terbit di NVD: 18 Juni 2021
Terakhir diubah: 17 Juni 2026
Status NVD: Modified
CVSS 3.1: 9.8 (Critical), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE): CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
EPSS (30 hari): 0,99% peluang dieksploitasi; lebih tinggi dari 61,6% CVE lain

Produk dan versi terdampak

Vendor	Produk	Versi terdampak
contiki-ng	contiki-ng	Semua versi sebelum 4.5

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

https://github.com/contiki-ng/contiki-ng/pull/1183 patch · advisory pihak ketiga
https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-6xf2-77gf-fgjx patch · advisory pihak ketiga

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.