gsd-2021-26857
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26855, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-26857",
"description": "Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26855, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078.",
"id": "GSD-2021-26857"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-26857"
],
"details": "Microsoft Exchange Server Remote Code Execution Vulnerability This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26855, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078.",
"id": "GSD-2021-26857",
"modified": "2023-12-13T01:23:32.990544Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cisa.gov": {
"cveID": "CVE-2021-26857",
"dateAdded": "2021-11-03",
"dueDate": "2021-04-16",
"product": "Microsoft Exchange Server",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Microsoft Exchange Server Remote Code Execution Vulnerability. This CVE ID is unique from CVE-2021-26412, CVE-2021-26854, CVE-2021-26855, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Unified Messaging Deserialization Vulnerability"
},
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "secure@microsoft.com",
"ID": "CVE-2021-26857",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 19",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 8",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019",
"version": {
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{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2013 Cumulative Update 22",
"version": {
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{
"version_affected": "\u003c",
"version_name": "15.00.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 2",
"version": {
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{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 13",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2013 Cumulative Update 23",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.00.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 3",
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}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 14",
"version": {
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"version_affected": "\u003c",
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}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 4",
"version": {
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{
"version_affected": "\u003c",
"version_name": "15.02.0",
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}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 15",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 5",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 6",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 16",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 17",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 7",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 18",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2010 Service Pack 3",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "14.0.0.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2013 Service Pack 1",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.00.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2013 Cumulative Update 21",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.00.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 12",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 8",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2019 Cumulative Update 1",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.02.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 9",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 10",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
},
{
"product_name": "Microsoft Exchange Server 2016 Cumulative Update 11",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_name": "15.01.0",
"version_value": "publication"
}
]
}
}
]
},
"vendor_name": "Microsoft"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Microsoft Exchange Server Remote Code Execution Vulnerability"
}
]
},
"impact": {
"cvss": [
{
"baseScore": 7.8,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C",
"version": "3.1"
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Remote Code Execution"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857",
"refsource": "MISC",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857"
}
]
}
},
"nvd.nist.gov": {
"cve": {
"cisaActionDue": "2021-04-16",
"cisaExploitAdd": "2021-11-03",
"cisaRequiredAction": "Apply updates per vendor instructions.",
"cisaVulnerabilityName": "Microsoft Exchange Server Remote Code Execution Vulnerability",
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:microsoft:exchange_server:2010:sp3:*:*:*:*:*:*",
"matchCriteriaId": "3E5EA9AD-1E84-4AB5-A1EF-3B9F2AC84755",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*",
"matchCriteriaId": "DA166F2A-D83B-4D50-AD0B-668D813E0585",
"vulnerable": true
},
{
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"matchCriteriaId": "29805EC7-6403-44B9-91EC-109C087E98EB",
"vulnerable": true
},
{
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"vulnerable": true
},
{
"criteria": "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_7:*:*:*:*:*:*",
"matchCriteriaId": "36CE5C6D-9A04-41F5-AE7C-265779833649",
"vulnerable": true
},
{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Microsoft Exchange Server Remote Code Execution Vulnerability"
},
{
"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-2021-26855, CVE-2021-26858, CVE-2021-27065, CVE-2021-27078"
}
],
"id": "CVE-2021-26857",
"lastModified": "2023-12-29T17:16:01.073",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "secure@microsoft.com",
"type": "Primary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.8,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Secondary"
}
]
},
"published": "2021-03-03T00:15:12.167",
"references": [
{
"source": "secure@microsoft.com",
"tags": [
"Patch",
"Vendor Advisory"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26857"
}
],
"sourceIdentifier": "secure@microsoft.com",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-502"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.