CVE-2026-8920
Improper Restriction of Communication Channel to Intended Endpoints and External Control of File Name or Path in Aura Wallpaper Service allow a local user to perform file operations by sending crafted commands containing an arbitrary file path and bypassing the service’s path restrictions . On specific models , this can also cause a single feature to become unavailable . Refer to the ' Security Update for Aura Wallpaper Service ' section on the ASUS Security Advisory for more information.
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/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: 0.11%
- Percentil entre todas las CVEs puntuadas: 1
- Fecha de la puntuación: 4/10/2026
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
T1068Exploitation for Privilege Escalationprivilege escalation85 % - Impacto principal
T1083File and Directory Discoverydiscovery75 % - Impacto secundario
T1565.001Stored Data Manipulationimpact70 %
Acceso local con PR:L sin UI permite escalada de privilegios (T1068) en servicio con permisos elevados. El bypass de restricciones de ruta (CWE-73, CWE-923) posibilita lectura (T1083) y manipulación de archivos (T1565.001).
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)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-73, CWE-923
Referencias
JSON original (NVD)
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{
"id": "CVE-2026-8920",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-8920",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-07-15T13:12:11.792360Z"
}
}
],
"cvssMetricV40": [
{
"type": "Secondary",
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 8.5,
"Automatable": "NOT_DEFINED",
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/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": "NONE",
"attackComplexity": "HIGH",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"subIntegrityImpact": "NONE",
"vulnIntegrityImpact": "HIGH",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"vulnAvailabilityImpact": "HIGH",
"availabilityRequirement": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"subConfidentialityImpact": "HIGH",
"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": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"affectedData": [
{
"vendor": "ASUS",
"product": "Aura Wallpaper Service",
"versions": [
{
"status": "affected",
"version": "v2.1.8.0",
"versionType": "custom",
"lessThanOrEqual": "v2.1.15.0"
}
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-07-15T02:22:57.790",
"references": [
{
"url": "https://www.asus.com/security-advisory/",
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1",
"description": [
{
"lang": "en",
"value": "CWE-73"
},
{
"lang": "en",
"value": "CWE-923"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Improper Restriction of Communication Channel to Intended Endpoints and External Control of File Name or Path in Aura Wallpaper Service allow a local user to perform file operations by sending crafted commands containing an arbitrary file path and bypassing the service’s path restrictions . On specific models , this can also cause a single feature to become unavailable .\nRefer to the ' Security Update for Aura Wallpaper Service ' section on the ASUS Security Advisory for more information."
}
],
"lastModified": "2026-07-15T16:24:31.140",
"sourceIdentifier": "54bf65a7-a193-42d2-b1ba-8e150d3c35e1"
}