{"id":"RHSA-2021:0787","summary":"Red Hat Security Advisory: .NET Core 2.1 on Red Hat Enterprise Linux security and bugfix update","modified":"2026-03-11T07:29:39.514755Z","published":"2025-08-04T10:19:31Z","upstream":["CVE-2021-26701"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2021:0787"},{"type":"ARTICLE","url":"https://access.redhat.com/security/updates/classification/#important"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1933740"},{"type":"ADVISORY","url":"https://security.access.redhat.com/data/csaf/v2/advisories/2021/rhsa-2021_0787.json"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2021-26701"},{"type":"ADVISORY","url":"https://www.cve.org/CVERecord?id=CVE-2021-26701"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-26701"},{"type":"ARTICLE","url":"https://github.com/dotnet/announcements/issues/178"},{"type":"ARTICLE","url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26701"}],"affected":[{"package":{"name":"rh-dotnet21","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1-25.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-dotnet","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.522-1.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-dotnet-debuginfo","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-debuginfo"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.522-1.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-dotnet-host","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-host"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.26-1.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-dotnet-runtime-2.1","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-runtime-2.1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.26-1.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-dotnet-sdk-2.1","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-sdk-2.1"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.522-1.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-dotnet-sdk-2.1.5xx","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-dotnet-sdk-2.1.5xx"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1.522-1.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}},{"package":{"name":"rh-dotnet21-runtime","ecosystem":"Red Hat:rhel_dotnet:2.1::el7","purl":"pkg:rpm/redhat/rh-dotnet21-runtime"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:2.1-25.el7_9"}]}],"database_specific":{"source":"https://security.access.redhat.com/data/osv/RHSA-2021:0787.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}