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nvd-json-data-feeds/CVE-2021/CVE-2021-268xx/CVE-2021-26855.json

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{
"id": "CVE-2021-26855",
"sourceIdentifier": "secure@microsoft.com",
"published": "2021-03-03T00:15:12.103",
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"lastModified": "2025-03-07T15:38:25.600",
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"vulnStatus": "Analyzed",
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"cveTags": [],
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"descriptions": [
{
"lang": "en",
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"value": "Microsoft Exchange Server Remote Code Execution Vulnerability"
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},
{
"lang": "es",
"value": "Una Vulnerabilidad de Ejecuci\u00f3n de c\u00f3digo remota de Microsoft Exchange Server. Este ID de CVE es diferente de CVE-2021-26412, CVE-2021-26854, CVE-2021-26857, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078"
}
],
"metrics": {
"cvssMetricV31": [
{
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"source": "secure@microsoft.com",
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"type": "Secondary",
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"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
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"baseScore": 9.1,
"baseSeverity": "CRITICAL",
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"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"availabilityImpact": "NONE"
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},
"exploitabilityScore": 3.9,
"impactScore": 5.2
},
{
"source": "nvd@nist.gov",
"type": "Secondary",
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"cvssData": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 9.8,
"baseSeverity": "CRITICAL",
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"attackVector": "NETWORK",
"attackComplexity": "LOW",
"privilegesRequired": "NONE",
"userInteraction": "NONE",
"scope": "UNCHANGED",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
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"availabilityImpact": "HIGH"
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},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
],
"cvssMetricV2": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"cvssData": {
"version": "2.0",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
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"baseScore": 7.5,
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"accessVector": "NETWORK",
"accessComplexity": "LOW",
"authentication": "NONE",
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
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"availabilityImpact": "PARTIAL"
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},
"baseSeverity": "HIGH",
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"acInsufInfo": false,
"obtainAllPrivilege": false,
"obtainUserPrivilege": false,
"obtainOtherPrivilege": false,
"userInteractionRequired": false
}
]
},
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"cisaExploitAdd": "2021-11-03",
"cisaActionDue": "2021-04-16",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Microsoft Exchange Server Remote Code Execution Vulnerability",
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"weaknesses": [
{
"source": "nvd@nist.gov",
"type": "Primary",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
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},
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"type": "Secondary",
"description": [
{
"lang": "en",
"value": "CWE-918"
}
]
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}
],
"configurations": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
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],
"references": [
{
"url": "http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html",
"source": "secure@microsoft.com",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
]
},
{
"url": "http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html",
"source": "secure@microsoft.com",
"tags": [
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]
},
{
"url": "http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html",
"source": "secure@microsoft.com",
"tags": [
"Exploit",
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]
},
{
"url": "http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html",
"source": "secure@microsoft.com",
"tags": [
"Exploit",
"Third Party Advisory",
"VDB Entry"
]
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855",
"source": "secure@microsoft.com",
"tags": [
"Patch",
"Vendor Advisory"
]
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},
{
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"source": "af854a3a-2127-422b-91ae-364da2661108",
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},
{
"url": "http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html",
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},
{
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"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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]
},
{
"url": "http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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]
},
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855",
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Vendor Advisory"
]
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}
]
}
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