{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2023-21538", "ASSIGNER": "secure@microsoft.com", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": ".NET Denial of Service Vulnerability" } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "CWE-502: Deserialization of Untrusted Data", "cweId": "CWE-502" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Microsoft", "product": { "product_data": [ { "product_name": ".NET 6.0", "version": { "version_data": [ { "version_affected": "<", "version_name": "6.0.0", "version_value": "6.0.13" } ] } }, { "product_name": "PowerShell 7.2", "version": { "version_data": [ { "version_affected": "<", "version_name": "7.2.0", "version_value": "7.2.9" } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538", "refsource": "MISC", "name": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538" } ] }, "impact": { "cvss": [ { "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" } ] } }