CVE-2026-20042 MEDIUM

CVE-2026-20042: Cisco Nexus Dashboard Configuration REST API Unauthorized Access Vulnerability

Vendor Cisco
Product Cisco Nexus Dashboard
Weakness CWE-295
Published April 1, 2026
Last update April 2, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

What the vulnerability does

01Description

A vulnerability in the configuration backup feature of Cisco Nexus Dashboard could allow an attacker who has the encryption password and access to Full or Config-only backup files to access sensitive information. This vulnerability exists because authentication details are included in the encrypted backup files. An attacker with a valid backup file and encryption password from an affected device could decrypt the backup file. The attacker could then use the authentication details in the backup file to access internal-only APIs on the affected device. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system as the root user.

Key dates

02Disclosure timeline

April 1, 2026 CVE published
April 2, 2026 Record updated