CVE-2025-20258

A vulnerability in the self-service portal of Cisco Duo could allow an unauthenticated, remote attacker to inject arbitrary commands into emails that are sent by the service. This vulnerability is

Severity
Medium 5.4
CVSS 3.1
Exploited
Not listed
EPSS
0.002
15.7th percentile
Discovered by
Third party
Published by the vendor
Published
May 21, 2025
Assigned by cisco

Description

A vulnerability in the self-service portal of Cisco Duo could allow an unauthenticated, remote attacker to inject arbitrary commands into emails that are sent by the service. This vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by injecting arbitrary commands into a portion of an email that is sent by the service. A successful exploit could allow the attacker to send emails that contain malicious content to unsuspecting users.

Weakness: CWE-77

Affected products

Vendor Product Category Matched by
Cisco Cisco Duo Identity / IAM / MFA cna-assigner
Vendor-reported affected versions (1)
  • Cisco · Cisco Duo