{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45659", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-05-12T20:33:35.158Z", "datePublished": "2026-05-22T22:04:33.517Z", "dateUpdated": "2026-05-22T22:04:33.517Z"}, "containers": {"cna": {"title": "Microsoft SharePoint Remote Code Execution Vulnerability", "datePublic": "2026-05-21T14:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2016:*:*:*:*:enterprise:*:*:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.5552.1002"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sharepoint_server_2019:*:*:*:*:*:*:*:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.10417.20128"}, {"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*", "versionStartIncluding": "16.0.0", "versionEndExcluding": "16.0.19725.20280"}]}]}], "affected": [{"vendor": "Microsoft", "product": "Microsoft SharePoint Enterprise Server 2016", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.5552.1002", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server 2019", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.10417.20128", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Microsoft SharePoint Server Subscription Edition", "platforms": ["x64-based Systems"], "versions": [{"version": "16.0.0", "lessThan": "16.0.19725.20280", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Deserialization of untrusted data in Microsoft Office SharePoint allows an authorized attacker to execute code over a network.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-502: Deserialization of Untrusted Data", "lang": "en-US", "type": "CWE", "cweId": "CWE-502"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-05-22T22:04:33.517Z"}, "references": [{"name": "Microsoft SharePoint Remote Code Execution Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 8.8, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C"}}]}}}

{}

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