CVE-2021-26427
Vulnerability from cvelistv5
Published
2021-10-13 00:26
Modified
2024-08-03 20:26
Severity ?
EPSS score ?
Summary
Microsoft Exchange Server Remote Code Execution Vulnerability
References
Impacted products
Vendor | Product | Version | ||||||||||||||||||||||
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▼ | Microsoft | Microsoft Exchange Server 2016 Cumulative Update 22 |
Version: 15.0.0 < 15.01.2375.012 cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:* |
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{ containers: { adp: [ { providerMetadata: { dateUpdated: "2024-08-03T20:26:25.215Z", orgId: "af854a3a-2127-422b-91ae-364da2661108", shortName: "CVE", }, references: [ { tags: [ "x_refsource_MISC", "x_transferred", ], url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427", }, ], title: "CVE Program Container", }, ], cna: { affected: [ { cpes: [ "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Microsoft Exchange Server 2016 Cumulative Update 22", vendor: "Microsoft", versions: [ { lessThan: "15.01.2375.012", status: "affected", version: "15.0.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Microsoft Exchange Server 2019 Cumulative Update 11", vendor: "Microsoft", versions: [ { lessThan: "15.02.0986.009", status: "affected", version: "15.02.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Microsoft Exchange Server 2013 Cumulative Update 23", vendor: "Microsoft", versions: [ { lessThan: "15.00.1497.024", status: "affected", version: "15.00.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Microsoft Exchange Server 2016 Cumulative Update 21", vendor: "Microsoft", versions: [ { lessThan: "15.01.2308.015", status: "affected", version: "15.01.0", versionType: "custom", }, ], }, { cpes: [ "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:*", ], platforms: [ "x64-based Systems", ], product: "Microsoft Exchange Server 2019 Cumulative Update 10", vendor: "Microsoft", versions: [ { lessThan: "15.02.0922.014", status: "affected", version: "15.02.0", versionType: "custom", }, ], }, ], datePublic: "2021-10-12T07:00:00+00:00", descriptions: [ { lang: "en-US", value: "Microsoft Exchange Server Remote Code Execution Vulnerability", }, ], metrics: [ { cvssV3_1: { baseScore: 9, baseSeverity: "CRITICAL", vectorString: "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C", version: "3.1", }, format: "CVSS", scenarios: [ { lang: "en-US", value: "GENERAL", }, ], }, ], problemTypes: [ { descriptions: [ { description: "Remote Code Execution", lang: "en-US", type: "Impact", }, ], }, ], providerMetadata: { dateUpdated: "2024-05-29T14:52:19.160Z", orgId: "f38d906d-7342-40ea-92c1-6c4a2c6478c8", shortName: "microsoft", }, references: [ { tags: [ "x_refsource_MISC", ], url: "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427", }, ], title: "Microsoft Exchange Server Remote Code Execution Vulnerability", }, }, cveMetadata: { assignerOrgId: "f38d906d-7342-40ea-92c1-6c4a2c6478c8", assignerShortName: "microsoft", cveId: "CVE-2021-26427", datePublished: "2021-10-13T00:26:32", dateReserved: "2021-01-29T00:00:00", dateUpdated: "2024-08-03T20:26:25.215Z", state: "PUBLISHED", }, dataType: "CVE_RECORD", dataVersion: "5.1", "vulnerability-lookup:meta": { nvd: "{\"cve\":{\"id\":\"CVE-2021-26427\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-10-13T01:15:09.213\",\"lastModified\":\"2024-11-21T05:56:21.850\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Microsoft Exchange Server Remote Code Execution Vulnerability\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de Ejecución de Código Remota en Microsoft Exchange Server\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.0,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.3,\"impactScore\":6.0},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H\",\"baseScore\":9.6,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"ADJACENT_NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.8,\"impactScore\":6.0}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:A/AC:L/Au:N/C:P/I:P/A:P\",\"baseScore\":5.8,\"accessVector\":\"ADJACENT_NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":6.5,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA166F2A-D83B-4D50-AD0B-668D813E0585\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_21:*:*:*:*:*:*\",\"matchCriteriaId\":\"3BE427A4-B0C2-4064-8234-29426325C348\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_22:*:*:*:*:*:*\",\"matchCriteriaId\":\"449CE85B-E599-44D3-A7C1-5133F6A55E86\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_10:*:*:*:*:*:*\",\"matchCriteriaId\":\"B4185347-EEDD-4239-9AB3-410E2EC89D2A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_11:*:*:*:*:*:*\",\"matchCriteriaId\":\"435343A4-BF10-461A-ABF2-D511A5FBDA75\"}]}]}],\"references\":[{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26427\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\",\"Vendor Advisory\"]}]}}", }, }
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Sightings
Author | Source | Type | Date |
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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.