CVE-2025-20126

A vulnerability in certification validation routines of Cisco ThousandEyes Endpoint Agent for macOS and RoomOS could allow an unauthenticated, remote attacker to intercept or manipulate metrics information. This vulnerability exists because the affected software does not properly validate certificates for hosted metrics services. An on-path attacker could exploit this vulnerability by intercepting network traffic using a crafted certificate. A successful exploit could allow the attacker to masquerade as a trusted host and monitor or change communications between the remote metrics service and the vulnerable client.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

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-thousandeyes-cert-pqtJUv9N	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:cisco:thousandeyes_endpoint_agent:*:*:*:*:*:*:*:*

cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*

Configuration 2 (hide)

AND

cpe:2.3:a:cisco:thousandeyes_endpoint_agent:*:*:*:*:*:*:*:*

cpe:2.3:o:cisco:roomos:-:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-01-08 16:15

Updated : 2025-07-22 15:33

NVD link : CVE-2025-20126

Mitre link : CVE-2025-20126

CVE.ORG link : CVE-2025-20126

JSON object : View

Products Affected

cisco

roomos
thousandeyes_endpoint_agent

apple

macos

CWE

CWE-295

Improper Certificate Validation

{"id": "CVE-2025-20126", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.2}, {"type": "Primary", "source": "[email protected]", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.2}]}, "published": "2025-01-08T16:15:38.357", "references": [{"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-thousandeyes-cert-pqtJUv9N", "tags": ["Vendor Advisory"], "source": "[email protected]"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "[email protected]", "description": [{"lang": "en", "value": "CWE-295"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in certification validation routines of Cisco ThousandEyes Endpoint Agent for macOS and RoomOS could allow an unauthenticated, remote attacker to intercept or manipulate metrics information.\r\n\r\nThis vulnerability exists because the affected software does not properly validate certificates for hosted metrics services. An on-path attacker could exploit this vulnerability by intercepting network traffic using a crafted certificate. A successful exploit could allow the attacker to masquerade as a trusted host and monitor or change communications between the remote metrics service and the vulnerable client."}, {"lang": "es", "value": "Una vulnerabilidad en certification validation routines de Cisco ThousandEyes Endpoint Agent para macOS y RoomOS podr\u00eda permitir que un atacante remoto no autenticado intercepte o manipule la informaci\u00f3n de m\u00e9tricas. Esta vulnerabilidad existe porque el software afectado no valida correctamente los certificados para los servicios de m\u00e9tricas alojados. Un atacante en ruta podr\u00eda aprovechar esta vulnerabilidad interceptando el tr\u00e1fico de red mediante un certificado manipulado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante hacerse pasar por un host confiable y monitorear o cambiar las comunicaciones entre el servicio de m\u00e9tricas remoto y el cliente vulnerable."}], "lastModified": "2025-07-22T15:33:29.487", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:thousandeyes_endpoint_agent:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "750FAF96-CB1C-4594-ADAD-1759E2814248", "versionEndExcluding": "1.206.3"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:apple:macos:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "387021A0-AF36-463C-A605-32EA7DAC172E"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:thousandeyes_endpoint_agent:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "68F80C79-AA52-457E-806A-92B049076693", "versionEndExcluding": "1.207.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:roomos:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8F10D2C6-D629-45E1-966F-AB9EAB4EDB03"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "[email protected]"}