CVE-2025-20354
Full vulnerability record from the local CVENow database.
Description
A vulnerability in the Java Remote Method Invocation (RMI) process of Cisco Unified CCX could allow an unauthenticated, remote attacker to upload arbitrary files and execute arbitrary commands with root permissions on an affected system. This vulnerability is due to improper authentication mechanisms that are associated to specific Cisco Unified CCX features. An attacker could exploit this vulnerability by uploading a crafted file to an affected system through the Java RMI process. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root.
Severity
CRITICAL
CVSS score
9.8
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-11-05 17:15:37.743000
Last modified
2026-10-18 21:10:00.120000
View original CVE JSON
{
"id": "CVE-2025-20354",
"sourceIdentifier": "[email protected]",
"published": "2025-11-05T17:15:37.743",
"lastModified": "2026-10-18T21:10:00.120",
"vulnStatus": "Analyzed",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Java Remote Method Invocation (RMI) process of Cisco Unified CCX could allow an unauthenticated, remote attacker to upload arbitrary files and execute arbitrary commands with root permissions on an affected system.\r\n\r\nThis vulnerability is due to improper authentication mechanisms that are associated to specific Cisco Unified CCX features. An attacker could exploit this vulnerability by uploading a crafted file to an affected system through the Java RMI process. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system and elevate privileges to root."
},
{
"lang": "es",
"value": "Una vulnerabilidad en el proceso Java Remote Method Invocation (RMI) de Cisco Unified CCX podría permitir a un atacante remoto no autenticado cargar archivos arbitrarios y ejecutar comandos arbitrarios con permisos de root en un sistema afectado.\n\nEsta vulnerabilidad se debe a mecanismos de autenticación inadecuados que están asociados a características específicas de Cisco Unified CCX. Un atacante podría explotar esta vulnerabilidad cargando un archivo manipulado en un sistema afectado a través del proceso Java RMI. Un exploit exitoso podría permitir al atacante ejecutar comandos arbitrarios en el sistema operativo subyacente y elevar privilegios a root."
}
],
"affected": [
{
"source": "[email protected]",
"affectedData": [
{
"vendor": "Cisco",
"product": "Cisco Unified Contact Center Express",
"defaultStatus": "unknown",
"versions": [
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"version": "10.5(1)SU1",
"status": "affected"
},
{
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"status": "affected"
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{
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{
"version": "11.6(2)ES05",
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{
"version": "12.0(1)ES02",
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},
{
"version": "11.6(2)ES04",
"status": "affected"
},
{
"version": "11.6(2)ES03",
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{
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{
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{
"version": "10.6(1)SU3ES03",
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{
"version": "12.5(1)_SU03_ES03",
"status": "affected"
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{
"version": "12.5(1)_SU03_ES04",
"status": "affected"
},
{
"version": "12.5(1)_SU03_ES05",
"status": "affected"
},
{
"version": "UCCX 15.0.1",
"status": "affected"
},
{
"version": "12.5(1)_SU03_ES06",
"status": "affected"
}
]
}
]
}
],
"metrics": {
"cvssMetricV31": [
{
"source": "[email protected]",
"type": "Secondary",
"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"availabilityImpact": "HIGH"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
],
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"timestamp": "2025-11-06T04:55:43.370246Z",
"id": "CVE-2025-20354",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "total"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
]
},
"weaknesses": [
{
"source": "[email protected]",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-434"
}
]
}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
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"criteria": "cpe:2.3:a:cisco:unified_contact_center_express:*:*:*:*:*:*:*:*",
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],
"references": [
{
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cc-unauth-rce-QeN8h7mQ",
"source": "[email protected]",
"tags": [
"Vendor Advisory"
]
}
]
}