CVE-2026-57089
Estado: AnalizadaCrítica (9.8)—
Use after free in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized attacker to execute code over a network.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Puntuación base: 9.8
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.66%
- Percentil entre todas las CVEs puntuadas: 50
- 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
T1190Exploit Public-Facing Applicationinitial access95 % - Impacto principal
T1059Command and Scripting Interpreterexecution90 % - Impacto secundario
T1068Exploitation for Privilege Escalationprivilege escalation85 %
Vector CVSS de red sin privilegios (AV:N/PR:N) indica T1190. El use-after-free (CWE-416) en srvnet.sys permite ejecución de código remoto (T1059) con riesgo de escalada a SYSTEM (T1068).
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 (12)
Microsoft — Windows 10 1607Microsoft — Windows 10 1809Microsoft — Windows 10 21h2Microsoft — Windows 10 22h2Microsoft — Windows 11 24h2Microsoft — Windows 11 25h2Microsoft — Windows 11 26h1Microsoft — Windows Server 2012Microsoft — Windows Server 2016Microsoft — Windows Server 2019Microsoft — Windows Server 2022Microsoft — Windows Server 2025
CWE
- CWE-416
Referencias
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-57089",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-57089",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "total"
}
],
"version": "2.0.3",
"timestamp": "2026-07-22T00:00:00+00:00"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "secure@microsoft.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "REQUIRED",
"attackComplexity": "HIGH",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 1.6
},
{
"type": "Primary",
"source": "nvd@nist.gov",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 9.8,
"attackVector": "NETWORK",
"baseSeverity": "CRITICAL",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "HIGH"
},
"impactScore": 5.9,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "secure@microsoft.com",
"affectedData": [
{
"vendor": "Microsoft",
"product": "Windows 10 Version 1607",
"versions": [
{
"status": "affected",
"version": "10.0.14393.0",
"lessThan": "10.0.14393.9339",
"versionType": "custom"
}
],
"platforms": [
"32-bit Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows 10 Version 1809",
"versions": [
{
"status": "affected",
"version": "10.0.17763.0",
"lessThan": "10.0.17763.9020",
"versionType": "custom"
}
],
"platforms": [
"32-bit Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows 10 Version 21H2",
"versions": [
{
"status": "affected",
"version": "10.0.19044.0",
"lessThan": "10.0.19044.7548",
"versionType": "custom"
}
],
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows 10 Version 22H2",
"versions": [
{
"status": "affected",
"version": "10.0.19045.0",
"lessThan": "10.0.19045.7548",
"versionType": "custom"
}
],
"platforms": [
"32-bit Systems",
"ARM64-based Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 Version 24H2",
"versions": [
{
"status": "affected",
"version": "10.0.26100.0",
"lessThan": "10.0.26100.8875",
"versionType": "custom"
}
],
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 Version 25H2",
"versions": [
{
"status": "affected",
"version": "10.0.26200.0",
"lessThan": "10.0.26200.8875",
"versionType": "custom"
}
],
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows 11 version 26H1",
"versions": [
{
"status": "affected",
"version": "10.0.28000.0",
"lessThan": "10.0.28000.2525",
"versionType": "custom"
}
],
"platforms": [
"ARM64-based Systems",
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012",
"versions": [
{
"status": "affected",
"version": "6.2.9200.0",
"lessThan": "6.2.9200.26226",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012 (Server Core installation)",
"versions": [
{
"status": "affected",
"version": "6.2.9200.0",
"lessThan": "6.2.9200.26226",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012 R2",
"versions": [
{
"status": "affected",
"version": "6.3.9600.0",
"lessThan": "6.3.9600.23291",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2012 R2 (Server Core installation)",
"versions": [
{
"status": "affected",
"version": "6.3.9600.0",
"lessThan": "6.3.9600.23291",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2016",
"versions": [
{
"status": "affected",
"version": "10.0.14393.0",
"lessThan": "10.0.14393.9339",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2016 (Server Core installation)",
"versions": [
{
"status": "affected",
"version": "10.0.14393.0",
"lessThan": "10.0.14393.9339",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2019",
"versions": [
{
"status": "affected",
"version": "10.0.17763.0",
"lessThan": "10.0.17763.9020",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2019 (Server Core installation)",
"versions": [
{
"status": "affected",
"version": "10.0.17763.0",
"lessThan": "10.0.17763.9020",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2022",
"versions": [
{
"status": "affected",
"version": "10.0.20348.0",
"lessThan": "10.0.20348.5386",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2025",
"versions": [
{
"status": "affected",
"version": "10.0.26100.0",
"lessThan": "10.0.26100.33158",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
},
{
"vendor": "Microsoft",
"product": "Windows Server 2025 (Server Core installation)",
"versions": [
{
"status": "affected",
"version": "10.0.26100.0",
"lessThan": "10.0.26100.33158",
"versionType": "custom"
}
],
"platforms": [
"x64-based Systems"
]
}
]
}
],
"published": "2026-07-14T18:18:33.237",
"references": [
{
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-57089",
"tags": [
"Patch",
"Vendor Advisory"
],
"source": "secure@microsoft.com"
}
],
"vulnStatus": "Analyzed",
"weaknesses": [
{
"type": "Secondary",
"source": "secure@microsoft.com",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Use after free in Windows SMB Server Network Transport Driver (srvnet.sys) allows an unauthorized attacker to execute code over a network."
}
],
"lastModified": "2026-07-23T05:16:37.897",
"configurations": [
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "1A8DB50E-7571-4925-A293-CAB93ECD0EBF",
"versionEndExcluding": "10.0.14393.9339"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "A9DC4EC9-4E72-4CBC-BA0B-39CCC45DB8CE",
"versionEndExcluding": "10.0.14393.9339"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "643F21D8-3A5B-477D-AFFC-2451DDC472CC",
"versionEndExcluding": "10.0.17763.9020"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "A68E51D8-C76C-4C9E-9CBD-C7D4D4BCDFAA",
"versionEndExcluding": "10.0.17763.9020"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:*",
"vulnerable": true,
"matchCriteriaId": "038B4A9C-95B9-440A-83A2-AF10BC24590C",
"versionEndExcluding": "10.0.19044.7548"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "FCA35115-58F4-4015-9CA2-C33F45605AA6",
"versionEndExcluding": "10.0.19044.7548"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "02C2F9D5-439A-45D2-98EB-08DB85673712",
"versionEndExcluding": "10.0.19044.7548"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:*",
"vulnerable": true,
"matchCriteriaId": "80F87C10-5D02-4EC9-B1A4-8FD7F6CFE758",
"versionEndExcluding": "10.0.19045.7548"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "048B08D3-1959-47C0-A592-FCF0DCCD65A4",
"versionEndExcluding": "10.0.19045.7548"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:*",
"vulnerable": true,
"matchCriteriaId": "A41562FD-04BC-4FC3-B847-D87D164A9C15",
"versionEndExcluding": "10.0.19045.7548"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:*",
"vulnerable": true,
"matchCriteriaId": "6D55C01A-5908-4CFC-BEB6-BBF3B6F0C5AF",
"versionEndExcluding": "10.0.26100.8875"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "740B730D-AEC5-4735-A122-B1CF8B3C364C",
"versionEndExcluding": "10.0.26100.8875"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:*",
"vulnerable": true,
"matchCriteriaId": "E26E96B6-1469-46AE-9CB5-AB7A0372C398",
"versionEndExcluding": "10.0.26200.8875"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "DDBCA9E4-7BFB-423A-B7A7-9CBF5625053D",
"versionEndExcluding": "10.0.26200.8875"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:*",
"vulnerable": true,
"matchCriteriaId": "9C7AD7ED-307B-40B9-B706-45FB178C36D8",
"versionEndExcluding": "10.0.28000.2269"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "8967AF79-CAD0-4F87-85A5-95D031C9FEFA",
"versionEndExcluding": "10.0.28000.2269"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "A7DF96F8-BA6A-4780-9CA3-F719B3F81074"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "DB18C4CE-5917-401E-ACF7-2747084FD36E"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:-:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "8DCDD3DB-6205-4E1D-8609-807BFC2AE4E3",
"versionEndExcluding": "10.0.14393.9339"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:-:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "1E40816E-72E5-439A-887B-17EBF5E803FE",
"versionEndExcluding": "10.0.17763.9020"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "A152E6BF-9453-435F-A854-FA85D36922B4",
"versionEndExcluding": "10.0.20348.5386"
},
{
"criteria": "cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:*",
"vulnerable": true,
"matchCriteriaId": "CB74F035-459D-4608-9A22-DEED9559A2A0",
"versionEndExcluding": "10.0.26100.33158"
}
],
"operator": "OR"
}
]
}
],
"sourceIdentifier": "secure@microsoft.com"
}