CVEvulnerability

CVE-2026-20212

9.8 CRITICAL Published 2026-09-02 Modified 2026-09-03 Official page ↗
Status
Awaiting Analysis
Published
2026-09-02
Last modified
2026-09-03
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-1327

Description

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 (L3) virtual routing and forwarding (VRF). A successful exploit could allow the attacker to connect to an affected device and send crafted input that could be executed as code with root privileges. The exploitation of this vulnerability could also cause the S1HAL process to crash, which could cause the device to reload.

Related

Weakness · CWE (1)

  • CWE-1327 Binding to an Unrestricted IP Address weakness

References