CVE-2026-20677
Estado: ModificadaCrítica (9)—
A race condition was addressed with improved handling of symbolic links. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. A shortcut may be able to bypass sandbox restrictions.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- Puntuación base: 9
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.29%
- Percentil entre todas las CVEs puntuadas: 20
- 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
T1190Exploit Public-Facing Applicationinitial access60 % - Impacto principal
T1068Exploitation for Privilege Escalationprivilege escalation55 %
Inferido por reglas deterministas a partir del vector CVSS y la CWE. Solo orientativo.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (4)
CWE
- CWE-362
- CWE-367
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-20677",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-20677",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-02-17T15:29:57.200802Z"
}
}
],
"cvssMetricV31": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 9,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 6,
"exploitabilityScore": 2.2
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"cvssData": {
"scope": "CHANGED",
"version": "3.1",
"baseScore": 9,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 6,
"exploitabilityScore": 2.2
}
]
},
"affected": [
{
"source": "product-security@apple.com",
"affectedData": [
{
"vendor": "Apple",
"product": "iOS and iPadOS",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "18.7.5",
"versionType": "custom"
},
{
"status": "affected",
"version": "0",
"lessThan": "26.3",
"versionType": "custom"
}
]
},
{
"vendor": "Apple",
"product": "macOS",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "14.8.4",
"versionType": "custom"
},
{
"status": "affected",
"version": "0",
"lessThan": "15.7.4",
"versionType": "custom"
},
{
"status": "affected",
"version": "0",
"lessThan": "26.3",
"versionType": "custom"
}
]
},
{
"vendor": "Apple",
"product": "visionOS",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "26.3",
"versionType": "custom"
}
]
}
]
}
],
"published": "2026-02-11T23:16:10.107",
"references": [
{
"url": "https://support.apple.com/en-us/126346",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "product-security@apple.com"
},
{
"url": "https://support.apple.com/en-us/126347",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "product-security@apple.com"
},
{
"url": "https://support.apple.com/en-us/126348",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "product-security@apple.com"
},
{
"url": "https://support.apple.com/en-us/126349",
"source": "product-security@apple.com"
},
{
"url": "https://support.apple.com/en-us/126350",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "product-security@apple.com"
},
{
"url": "https://support.apple.com/en-us/126353",
"tags": [
"Release Notes",
"Vendor Advisory"
],
"source": "product-security@apple.com"
}
],
"vulnStatus": "Modified",
"weaknesses": [
{
"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-362"
}
]
},
{
"type": "Secondary",
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"description": [
{
"lang": "en",
"value": "CWE-367"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A race condition was addressed with improved handling of symbolic links. This issue is fixed in iOS 18.7.5 and iPadOS 18.7.5, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, visionOS 26.3. A shortcut may be able to bypass sandbox restrictions."
},
{
"lang": "es",
"value": "Se abordó una condición de carrera con una gestión mejorada de los enlaces simbólicos. Este problema se solucionó en macOS Tahoe 26.3, macOS Sonoma 14.8.4, iOS 18.7.5 y iPadOS 18.7.5, visionOS 26.3, iOS 26.3 y iPadOS 26.3. Un atajo podría eludir las restricciones de sandbox."
}
],
"lastModified": "2026-08-21T01:16:59.433",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5DF4C0EE-C67C-4BA1-BB50-C51DEC72E486",
"versionEndExcluding": "18.7.5"
},
{
"criteria": "cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "00E2601B-7453-4C8B-A307-EF7BC5BF2E84",
"versionEndExcluding": "26.3",
"versionStartIncluding": "26.0"
},
{
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "273784FD-F8F0-466D-AF6E-5511FF3781B7",
"versionEndExcluding": "18.7.5"
},
{
"criteria": "cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "951073F9-924E-4D9C-8DA1-64E284326CC5",
"versionEndExcluding": "26.3",
"versionStartIncluding": "26.0"
},
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "8D9F0DB6-C9A6-47C1-B131-0284A3989EF4",
"versionEndExcluding": "14.8.4"
},
{
"criteria": "cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "0488A377-7971-4703-8823-05BF1E23CF48",
"versionEndExcluding": "26.3",
"versionStartIncluding": "26.0"
},
{
"criteria": "cpe:2.3:o:apple:visionos:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "388EDB3F-A14E-4922-B88A-F1CB6DE50A2A",
"versionEndExcluding": "26.3"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "product-security@apple.com"
}