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
Remote, needs privileges or user interaction what this means
Exploited
Not listed
EPSS
0.003
19.3th percentile
Discovered by
Third party
Vendor-published field
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 products (1)
  • Cisco · Cisco Duo

Vendor advisory

cisco-sa-duo-ssp-cmd-inj-RCmYrNA

Cisco Duo Self-Service Portal Command Injection Vulnerability

Cisco’s rating: Medium (advisory CVSS 5.4) · Published May 21, 2025

Bug ID: CSCwo67628

The vendor’s rating applies to the whole advisory and can differ from this CVE’s own CVSS severity. Where this comes from

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