{"id":"CVE-2023-21538","details":".NET Denial of Service Vulnerability","aliases":["BIT-dotnet-2023-21538","BIT-dotnet-sdk-2023-21538","BIT-powershell-2023-21538","GHSA-8f7f-vqg5-jrv9"],"modified":"2026-07-08T07:34:16.724240920Z","published":"2023-01-10T22:15:14.837Z","related":["ALSA-2023:0077","ALSA-2023:0079"],"database_specific":{"unresolved_ranges":[{"cpes":["cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*","cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*"],"extracted_events":[{"introduced":"36"},{"last_affected":"36"},{"introduced":"37"},{"last_affected":"37"}],"source":"CPE_STRING","vendor_product":"fedoraproject:fedora"}]},"references":[{"type":"WEB","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-21538"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dotnet/core","events":[{"introduced":"ee849590a02cc5cd61eff18aa64bf985ec45124d"},{"last_affected":"ee849590a02cc5cd61eff18aa64bf985ec45124d"}],"database_specific":{"source":"CPE_STRING","cpe":"cpe:2.3:a:microsoft:.net:6.0.0:-:*:*:*:*:*:*","extracted_events":[{"introduced":"6.0.0-NA"},{"last_affected":"6.0.0-NA"}]}}],"versions":["6.0.0-NA","v6.0.0","v5.0.12","v3.1.21"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-21538.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/powershell/powershell","events":[{"introduced":"bec5c36d9da67bfcf5b88834f03b326c89f100c5"},{"last_affected":"bec5c36d9da67bfcf5b88834f03b326c89f100c5"}],"database_specific":{"cpe":"cpe:2.3:a:microsoft:powershell:7.2:*:*:*:*:*:*:*","extracted_events":[{"introduced":"7.2"},{"last_affected":"7.2"}],"source":"CPE_STRING"}}],"versions":["7.2","v7.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-21538.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}