CVE-2026-73443

Katalog CVE

CVSS 4.7 · Medium EPSS 0,27%

Kerentanan Authentication Bypass by Capture-replay. Skor CVSS 3.1 4.7 (Medium) menurut arista.com.

Deskripsi (NVD)

On affected platforms running Arista EOS with VRRPv2 IP-AH authentication configured, an unauthenticated attacker within the same layer 2 network segment on which VRRP is running can capture a legitimate authenticated VRRP advertisement and replay it indefinitely. Replayed advertisements can be used to advertise stale VRRP state, for example to prevent a backup router from taking over the virtual gateway after the original master has gone down, resulting in a denial of service for hosts using the virtual gateway address.

Rincian

Terbit di NVD

16 September 2026

Terakhir diubah

17 September 2026

Status NVD

Awaiting Analysis

CVSS 3.1

4.7 (Medium), sumber arista.com
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-294: Authentication Bypass by Capture-replay

EPSS (30 hari)

0,27% peluang dieksploitasi; lebih tinggi dari 18,2% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://www.arista.com/en/support/advisories-notices/security-advisory/24713-security-advisory-0157