csirt@kutim:~/threat-intel/cve/CVE-2021-1268

Katalog CVE

CVSS 6.5 · Medium EPSS 0,50%

Kerentanan Insufficient Adherence to Expected Conventions pada cisco ios xr. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

A vulnerability in the IPv6 protocol handling of the management interfaces of Cisco IOS XR Software could allow an unauthenticated, adjacent attacker to cause an IPv6 flood on the management interface network of an affected device. The vulnerability exists because the software incorrectly forwards IPv6 packets that have an IPv6 node-local multicast group address destination and are received on the management interfaces. An attacker could exploit this vulnerability by connecting to the same network as the management interfaces and injecting IPv6 packets that have an IPv6 node-local multicast group address destination. A successful exploit could allow the attacker to cause an IPv6 flood on the corresponding network. Depending on the number of Cisco IOS XR Software nodes on that network segment, exploitation could cause excessive network traffic, resulting in network degradation or a denial of service (DoS) condition.

Rincian

Terbit di NVD
4 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-1076: Insufficient Adherence to Expected Conventions
EPSS (30 hari)
0,50% peluang dieksploitasi; lebih tinggi dari 41,3% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco ios xr Semua versi sebelum 6.7.3
cisco ios xr Versi 7.1.0 hingga sebelum 7.1.3
cisco ios xr Versi 7.2.0 hingga sebelum 7.2.2
cisco ios xr Versi 7.3.0

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

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.