csirt@kutim:~/threat-intel/cve/CVE-2021-1230

Katalog CVE

CVSS 7.5 · High EPSS 1,5%

Kerentanan Improper Handling of Parameters pada cisco nx-os. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability with the Border Gateway Protocol (BGP) for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an unauthenticated, remote attacker to cause a routing process to crash, which could lead to a denial of service (DoS) condition. This vulnerability is due to an issue with the installation of routes upon receipt of a BGP update. An attacker could exploit this vulnerability by sending a crafted BGP update to an affected device. A successful exploit could allow the attacker to cause the routing process to crash, which could cause the device to reload. This vulnerability applies to both Internal BGP (IBGP) and External BGP (EBGP). Note: The Cisco implementation of BGP accepts incoming BGP traffic from explicitly configured peers only. To exploit this vulnerability, an attacker would need to send a specific BGP update message over an established TCP connection that appears to come from a trusted BGP peer.

Rincian

Terbit di NVD
24 Februari 2021
Terakhir diubah
17 Juni 2026
Status NVD
Modified
CVSS 3.1
7.5 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-233: Improper Handling of Parameters
EPSS (30 hari)
1,5% peluang dieksploitasi; lebih tinggi dari 74,0% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
cisco nx-os Versi 12.0(1m)
cisco nx-os Versi 12.0(1n)
cisco nx-os Versi 12.0(1o)
cisco nx-os Versi 12.0(1p)
cisco nx-os Versi 12.0(1q)
cisco nx-os Versi 12.0(1r)
cisco nx-os Versi 12.0(2f)
cisco nx-os Versi 12.0(2g)
cisco nx-os Versi 12.0(2h)
cisco nx-os Versi 12.0(2l)
cisco nx-os Versi 12.0(2m)
cisco nx-os Versi 12.0(2n)
cisco nx-os Versi 12.0(2o)
cisco nx-os Versi 12.1(1h)
cisco nx-os Versi 12.1(1i)
cisco nx-os Versi 12.1(2e)
cisco nx-os Versi 12.1(2g)
cisco nx-os Versi 12.1(2k)
cisco nx-os Versi 12.1(3g)
cisco nx-os Versi 12.1(3h)
cisco nx-os Versi 12.1(3j)
cisco nx-os Versi 12.1(4a)
cisco nx-os Versi 12.2(1k)
cisco nx-os Versi 12.2(1n)
cisco nx-os Versi 12.2(1o)
cisco nx-os Versi 12.2(2e)
cisco nx-os Versi 12.2(2f)
cisco nx-os Versi 12.2(2i)
cisco nx-os Versi 12.2(2j)
cisco nx-os Versi 12.2(2k)
cisco nx-os Versi 12.2(2q)
cisco nx-os Versi 12.2(3j)
cisco nx-os Versi 12.2(3p)
cisco nx-os Versi 12.2(3r)
cisco nx-os Versi 12.2(3s)
cisco nx-os Versi 12.2(3t)
cisco nx-os Versi 12.2(4f)
cisco nx-os Versi 12.2(4p)
cisco nx-os Versi 12.2(4q)
cisco nx-os Versi 12.2(4r)
cisco nx-os Versi 12.3(1e)
cisco nx-os Versi 12.3(1f)
cisco nx-os Versi 12.3(1i)
cisco nx-os Versi 12.3(1l)
cisco nx-os Versi 12.3(1o)
cisco nx-os Versi 12.3(1p)
cisco nx-os Versi 13.0(1k)
cisco nx-os Versi 13.0(2h)
cisco nx-os Versi 13.0(2k)
cisco nx-os Versi 13.0(2n)
cisco nx-os Versi 13.1(1i)
cisco nx-os Versi 13.1(2m)
cisco nx-os Versi 13.1(2o)
cisco nx-os Versi 13.1(2p)
cisco nx-os Versi 13.1(2q)
cisco nx-os Versi 13.1(2s)
cisco nx-os Versi 13.1(2t)
cisco nx-os Versi 13.1(2u)
cisco nx-os Versi 13.1(2v)
cisco nx-os Versi 13.2(1l)

> Data dari konfigurasi CPE di NVD. Ditampilkan 60 dari 103 konfigurasi; daftar lengkap ada 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.