cvelist/2021/26xxx/CVE-2021-26855.json

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{
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"data_version": "4.0",
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"data_type": "CVE",
"data_format": "MITRE",
"CVE_data_meta": {
"ID": "CVE-2021-26855",
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"ASSIGNER": "secure@microsoft.com",
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"STATE": "PUBLIC"
},
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"description": {
"description_data": [
{
"lang": "eng",
"value": "Microsoft Exchange Server Remote Code Execution Vulnerability"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Remote Code Execution"
}
]
}
]
},
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"affects": {
"vendor": {
"vendor_data": [
{
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"vendor_name": "Microsoft",
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"product": {
"product_data": [
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 19",
"version": {
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{
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"version_affected": "<",
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}
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}
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{
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"product_name": "Microsoft Exchange Server 2019 Cumulative Update 3",
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"version": {
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}
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}
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}
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}
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}
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}
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}
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}
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}
]
}
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},
"references": {
"reference_data": [
{
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855",
"refsource": "MISC",
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26855"
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},
{
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"url": "http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html",
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"refsource": "MISC",
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"name": "http://packetstormsecurity.com/files/161846/Microsoft-Exchange-2019-SSRF-Arbitrary-File-Write.html"
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},
{
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"url": "http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html",
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"refsource": "MISC",
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"name": "http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html"
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},
{
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"url": "http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html",
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"refsource": "MISC",
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"name": "http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html"
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},
{
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"url": "http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html",
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"refsource": "MISC",
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"name": "http://packetstormsecurity.com/files/162736/Microsoft-Exchange-ProxyLogon-Collector.html"
}
]
},
"impact": {
"cvss": [
{
"version": "3.1",
"baseSeverity": "CRITICAL",
"baseScore": 9.1,
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:F/RL:O/RC:C"
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}
]
}
}