CVE-2021-22161

Katalog CVE

CVSS 6.5 · Medium EPSS 0,52%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop') pada openwrt. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

In OpenWrt 19.07.x before 19.07.7, when IPv6 is used, a routing loop can occur that generates excessive network traffic between an affected device and its upstream ISP's router. This occurs when a link prefix route points to a point-to-point link, a destination IPv6 address belongs to the prefix and is not a local IPv6 address, and a router advertisement is received with at least one global unique IPv6 prefix for which the on-link flag is set. This affects the netifd and odhcp6c packages.

Rincian

Terbit di NVD

7 Februari 2021

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.5 (Medium), sumber NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

0,52% peluang dieksploitasi; lebih tinggi dari 42,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://openwrt.org/advisory/2021-02-02-1 advisory vendor