CVE-2025-40842
Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains a Cross-Site Scripting (XSS) vulnerability which, if exploited, can lead to unauthorized disclosure and modification of certain information.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Puntuación base: 8.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.15%
- Percentil entre todas las CVEs puntuadas: 3
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1189Drive-by Compromiseinitial access95 % - Impacto principal
T1059.007JavaScriptexecution85 % - Impacto secundario
T1005Data from Local Systemcollection80 %
CWE-79 (XSS) en producto Ericsson con UI:P (interacción del usuario) confirma T1189 (drive-by). XSS permite ejecución de JavaScript (T1059.007) y acceso a datos sensibles (T1005) en el navegador.
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-79
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2025-40842",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2025-40842",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-03-25T13:44:02.789000Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 6.1,
"attackVector": "NETWORK",
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "NONE",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 2.8
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 8.5,
"Automatable": "NOT_DEFINED",
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"exploitMaturity": "NOT_DEFINED",
"providerUrgency": "NOT_DEFINED",
"userInteraction": "PASSIVE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "NONE",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"vulnerabilityResponseEffort": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED"
}
}
]
},
"affected": [
{
"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
"affectedData": [
{
"vendor": "Ericsson",
"product": "Indoor Connect 8855",
"versions": [
{
"status": "affected",
"changes": [
{
"at": "2025.Q3",
"status": "unaffected"
}
],
"version": "0",
"lessThan": "2025.Q3",
"versionType": "custom"
}
],
"defaultStatus": "affected"
}
]
}
],
"published": "2026-03-25T14:16:30.570",
"references": [
{
"url": "https://www.ericsson.com/en/about-us/security/psirt/CVE-2025-40842",
"tags": [
"Vendor Advisory"
],
"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf"
},
{
"url": "https://www.ericsson.com/en/about-us/security/psirt/security-bulletin-indoorconnect-march-2026",
"tags": [
"Vendor Advisory"
],
"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf",
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Ericsson Indoor Connect 8855 versions prior to 2025.Q3 contains a\nCross-Site Scripting (XSS) vulnerability which, if exploited, can lead to\nunauthorized disclosure and modification of certain information."
},
{
"lang": "es",
"value": "Las versiones de Ericsson Indoor Connect 8855 anteriores a 2025.Q3 contienen una vulnerabilidad de cross-site scripting (XSS) que, si se explota, puede conducir a la divulgación y modificación no autorizada de cierta información."
}
],
"lastModified": "2026-06-17T09:22:12.713",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:ericsson:indoor_connect_8855_firmware:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "37C4F98B-D38A-47A6-B294-23A5E6291A81",
"versionEndExcluding": "2025.q3"
}
],
"operator": "OR"
},
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:h:ericsson:indoor_connect_8855:-:*:*:*:*:*:*:*",
"vulnerable": false,
"matchCriteriaId": "3B0C1261-B15A-4D91-AC65-9834D16A94F1"
}
],
"operator": "OR"
}
],
"operator": "AND"
}
],
"sourceIdentifier": "85b1779b-6ecd-4f52-bcc5-73eac4659dcf"
}