CVE-2026-19042
A command injection vulnerability in TeamViewer Full Client and Host for Linux prior to version 15.81.5 allows a remote attacker to execute arbitrary commands in the context of the current user via a specially crafted URL sent through the out-of-session chat feature. Exploitation requires user interaction by clicking the malicious link.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Puntuación base: 8.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 2.00%
- Percentil entre todas las CVEs puntuadas: 80
- 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
T1203Exploitation for Client Executionexecution95 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 %
Vector CVSS con UI:R (requiere interacción del usuario) y la descripción explícita de hacer clic en un enlace malicioso confirman T1203. CWE-78 (command injection) y la ejecución de comandos arbitrarios justifican T1059 como impacto.
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 (2)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-78
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-19042",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-19042",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-08-26T13:01:56.742837Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "psirt@teamviewer.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 8.8,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 2.8
}
]
},
"affected": [
{
"source": "psirt@teamviewer.com",
"affectedData": [
{
"vendor": "TeamViewer",
"product": "Full Client",
"versions": [
{
"status": "affected",
"version": "15.0",
"lessThan": "15.81.5",
"versionType": "custom"
},
{
"status": "affected",
"version": "14.0",
"lessThan": "14.7.488838",
"versionType": "custom"
},
{
"status": "affected",
"version": "13.0",
"lessThan": "13.2.153978",
"versionType": "custom"
}
],
"platforms": [
"Linux"
],
"defaultStatus": "unaffected"
},
{
"vendor": "TeamViewer",
"product": "Host",
"versions": [
{
"status": "affected",
"version": "15.0",
"lessThan": "15.81.5",
"versionType": "custom"
},
{
"status": "affected",
"version": "14.0",
"lessThan": "14.7.488838",
"versionType": "custom"
},
{
"status": "affected",
"version": "13.0",
"lessThan": "13.2.153978",
"versionType": "custom"
}
],
"platforms": [
"Linux"
],
"defaultStatus": "unaffected"
}
]
}
],
"published": "2026-08-26T10:16:40.323",
"references": [
{
"url": "https://www.teamviewer.com/en/resources/trust-center/security-bulletins/tv-2026-1009/",
"source": "psirt@teamviewer.com"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "psirt@teamviewer.com",
"description": [
{
"lang": "en",
"value": "CWE-78"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A command injection vulnerability in TeamViewer Full\nClient and Host for Linux prior to version 15.81.5 allows a remote attacker to\nexecute arbitrary commands in the context of the current user via a specially\ncrafted URL sent through the out-of-session chat feature. Exploitation requires\nuser interaction by clicking the malicious link."
}
],
"lastModified": "2026-09-01T20:50:58.753",
"sourceIdentifier": "psirt@teamviewer.com"
}