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 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.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-duo-ssp-cmd-inj-RCmYrNA	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:cisco:duo:-:*:*:*:*:-:*:*

History

23 Jul 2025, 16:17

Type	Values Removed	Values Added
CPE		cpe:2.3:a:cisco:duo:-:::::-::
References	~~() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-duo-ssp-cmd-inj-RCmYrNA -~~	() https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-duo-ssp-cmd-inj-RCmYrNA - Vendor Advisory
First Time		Cisco Cisco duo

21 May 2025, 20:24

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-05-21 17:15

Updated : 2025-07-23 16:17

NVD link : CVE-2025-20258

Mitre link : CVE-2025-20258

CVE.ORG link : CVE-2025-20258

JSON object : View

Products Affected

cisco

duo

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

{"id": "CVE-2025-20258", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "psirt@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "REQUIRED", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.8}]}, "published": "2025-05-21T17:15:57.400", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-duo-ssp-cmd-inj-RCmYrNA", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-77"}]}], "descriptions": [{"lang": "en", "value": "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.\r\n\r 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."}, {"lang": "es", "value": "Una vulnerabilidad en el portal de autoservicio de Cisco Duo podr\u00eda permitir que un atacante remoto no autenticado inyecte comandos arbitrarios en los correos electr\u00f3nicos enviados por el servicio. Esta vulnerabilidad se debe a una validaci\u00f3n de entrada insuficiente. Un atacante podr\u00eda explotar esta vulnerabilidad inyect\u00e1ndolos en una parte del correo electr\u00f3nico enviado por el servicio. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante enviar correos electr\u00f3nicos con contenido malicioso a usuarios desprevenidos."}], "lastModified": "2025-07-23T16:17:17.993", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:duo:-:*:*:*:*:-:*:*", "vulnerable": true, "matchCriteriaId": "5358EFB5-5721-4B7F-BFCB-7A34A3511703"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@cisco.com"}