CVE-2026-20042
Received
Received - Intake
Encryption Key Exposure in Cisco Nexus Dashboard Backup Enables Root Access
Publication date: 2026-04-01
Last updated on: 2026-04-01
Assigner: Cisco Systems, Inc.
Description
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| cisco | nexus_dashboard | * |
| cisco | nexus_dashboard | From 3.1(1k) (inc) to 4.2 (exc) |
| cisco | nexus_dashboard | to 3.2 (exc) |
| cisco | nexus_dashboard | to 4.1 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-295 | The product does not validate, or incorrectly validates, a certificate. |