{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-118747", "assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "state": "PUBLISHED", "assignerShortName": "microsoft", "dateReserved": "2026-10-28T19:08:23.388Z", "datePublished": "2026-11-10T18:21:52.172Z", "dateUpdated": "2026-11-10T18:21:52.172Z"}, "containers": {"cna": {"title": ".NET Denial of Service Vulnerability", "datePublic": "2026-11-10T16:00:00.000Z", "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:microsoft:system.formats.cbor:*:*:*:*:*:*:*:*", "versionStartIncluding": "10.0.0", "versionEndExcluding": "11.0.0"}]}]}], "affected": [{"vendor": "Microsoft", "product": "System.Formats.Cbor", "platforms": [".NET 10.0", ".NET 11.0", ".NET 8.0"], "versions": [{"version": "10.0.0", "lessThan": "11.0.0", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "Inefficient algorithmic complexity in .NET allows an unauthorized attacker to deny service over a network.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "CWE-407: Inefficient Algorithmic Complexity", "lang": "en-US", "type": "CWE", "cweId": "CWE-407"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2026-11-10T18:21:52.172Z"}, "references": [{"name": ".NET Denial of Service Vulnerability", "tags": ["vendor-advisory", "patch"], "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-118747"}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en-US", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "baseSeverity": "HIGH", "baseScore": 7.5, "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C"}}]}}}

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