CVE-2021-21280

Katalog CVE

CVSS 9.8 · Critical EPSS 1,1%

Kerentanan Out-of-bounds Write 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. It is possible to cause an out-of-bounds write in versions of Contiki-NG prior to 4.6 when transmitting a 6LoWPAN packet with a chain of extension headers. Unfortunately, the written header is not checked to be within the available space, thereby making it possible to write outside the buffer. The problem has been patched in Contiki-NG 4.6. 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-787: Out-of-bounds Write

EPSS (30 hari)

1,1% peluang dieksploitasi; lebih tinggi dari 63,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/contiki-ng/contiki-ng/pull/1409 patch · advisory pihak ketiga
• https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-r768-hrhf-v592 exploit · patch · advisory pihak ketiga