CVE-2024-53694
A time-of-check time-of-use (TOCTOU) race condition vulnerability has been reported to affect several product versions. If exploited, the vulnerability could allow local attackers who have gained user access to gain access to otherwise unauthorized resources.
We have already fixed the vulnerability in the following versions: QVPN Device Client for Mac 2.2.5 and later Qsync for Mac 5.1.3 and later Qfinder Pro Mac 7.11.1 and later
CVSS
- Versión: 4.0
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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: 8.6
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.13%
- Percentil entre todas las CVEs puntuadas: 2
- Fecha de la puntuación: 5/10/2026
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 Executionexecution75 % - Impacto principal
T1548.004Elevated Execution with Promptprivilege escalation65 %
TOCTOU con UI:R en acceso local indica ejecución en cliente por interacción. El CWE-367 permite acceso a recursos no autorizados, sugestivo de escalada de privilegios.
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 (3)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-367
Referencias
JSON original (NVD)
Mostrar
{
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"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2024-53694",
"role": "CISA Coordinator",
"options": [
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"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2025-03-07T17:55:18.573690Z"
}
}
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"cvssMetricV40": [
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"type": "Secondary",
"source": "security@qnapsecurity.com.tw",
"cvssData": {
"Safety": "NOT_DEFINED",
"version": "4.0",
"Recovery": "NOT_DEFINED",
"baseScore": 8.6,
"Automatable": "NOT_DEFINED",
"attackVector": "LOCAL",
"baseSeverity": "HIGH",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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": "ACTIVE",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"privilegesRequired": "LOW",
"subIntegrityImpact": "HIGH",
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"integrityRequirement": "NOT_DEFINED",
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"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"
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"affected": [
{
"source": "security@qnapsecurity.com.tw",
"affectedData": [
{
"vendor": "QNAP Systems Inc.",
"product": "QVPN Device Client for Mac",
"versions": [
{
"status": "affected",
"version": "2.2.x",
"lessThan": "2.2.5",
"versionType": "custom"
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],
"defaultStatus": "unaffected"
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{
"vendor": "QNAP Systems Inc.",
"product": "Qsync for Mac",
"versions": [
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"versionType": "custom"
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{
"vendor": "QNAP Systems Inc.",
"product": "Qfinder Pro Mac",
"versions": [
{
"status": "affected",
"version": "7.11.x",
"lessThan": "7.11.1",
"versionType": "custom"
}
],
"defaultStatus": "unaffected"
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],
"published": "2025-03-07T17:15:20.103",
"references": [
{
"url": "https://www.qnap.com/en/security-advisory/qsa-24-51",
"source": "security@qnapsecurity.com.tw"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
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"type": "Secondary",
"source": "security@qnapsecurity.com.tw",
"description": [
{
"lang": "en",
"value": "CWE-367"
}
]
}
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"descriptions": [
{
"lang": "en",
"value": "A time-of-check time-of-use (TOCTOU) race condition vulnerability has been reported to affect several product versions. If exploited, the vulnerability could allow local attackers who have gained user access to gain access to otherwise unauthorized resources.\n\nWe have already fixed the vulnerability in the following versions:\nQVPN Device Client for Mac 2.2.5 and later\nQsync for Mac 5.1.3 and later\nQfinder Pro Mac 7.11.1 and later"
},
{
"lang": "es",
"value": "Se ha informado de una vulnerabilidad de condición de ejecución de tiempo de uso y tiempo de verificación (TOCTOU) que afecta a varias versiones del producto. Si se explota, la vulnerabilidad podría permitir que los atacantes locales que hayan obtenido acceso de usuario obtengan acceso a recursos que de otro modo no estarían autorizados. Ya hemos corregido la vulnerabilidad en las siguientes versiones: QVPN Device Client para Mac 2.2.5 y posteriores Qsync para Mac 5.1.3 y posteriores Qfinder Pro Mac 7.11.1 y posteriores"
}
],
"lastModified": "2026-06-17T08:09:07.010",
"sourceIdentifier": "security@qnapsecurity.com.tw"
}