Cisco Security Updates – 16 April 2026

Cisco has released security updates to address several vulnerabilities affecting multiple Cisco products.

The addressed vulnerabilities could allow the attacker to perform denial-of-service attacks, gain elevated privileges, manipulate data, conduct cross-site scripting attacks, execute arbitrary commands, and gain access to the affected products.

Sample of addressed vulnerabilities:

1. Cisco Identity Services Engine Remote Code Execution and Path Traversal Vulnerability (CVE-2026-20147):

  • CVSS: 9.9
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Consequences: Gain Access

2. Cisco Unity Connection Arbitrary File Download Vulnerability (CVE-2026-20078):

  • CVSS: 6.5
  • Attack Vector: Network
  • Attack Complexity: Low
  • Privileges Required: Low
  • User Interaction: None
  • Consequences: Obtain Information
Vulnerabilities
Mitigations

The enterprise should deploy this patch as soon as the testing phase is completed.

Cisco Security Updates

References