Medium severity · published Apr 1, 2026
CVE-2026-20042
Cisco Nexus Dashboard Configuration REST API Unauthorized Access Vulnerability
6.5
CVSS
0.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CN
Cisco Nexus Dashboard · Cisco
1.1(3e); 1.1(3c); 1.1(3d); 1.1(0d); 1.1(2i); 2.0(1b); +34 more · source: vendor
ND
Nexus Dashboard · Cisco
before 4.2.1 · source: NVD
Affected product
CN
Cisco Nexus Dashboard
Cisco
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