{"id":"CVE-2021-43892","aliases":["EUVD-2021-30754","GHSA-4hpv-f46m-r2m2"],"status":"published","title":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","description":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.03017,"percentile":0.87534,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2021-12-15T14:15:37Z","modified":"2026-06-17T04:11:37Z","products":[{"vendor":"microsoft","product":"biztalk_esb_toolkit"},{"vendor":"microsoft","product":"microsoft biztalk esb toolkit 2.2"},{"vendor":"microsoft","product":"microsoft biztalk esb toolkit 2.3"},{"vendor":"microsoft","product":"microsoft biztalk esb toolkit 2.4"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43892","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43892"},{"url":"https://github.com/advisories/GHSA-4hpv-f46m-r2m2"}],"sources":{"cve":[{"id":"CVE-2021-43892","title":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","description":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","status":"published","published":"2021-12-15T14:15:37Z","modified":"2024-08-04T04:10:17.148Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C","level":"high","assessor":"cna"}],"updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30754","description":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","status":"published","published":"2021-12-15T14:15:37Z","modified":"2024-08-04T04:10:17Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:P/RL:O/RC:C","level":"high"}],"updated_at":"2026-11-03T03:24:12.599691Z"}],"ghsa":[{"id":"GHSA-4hpv-f46m-r2m2","title":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","description":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","status":"published","published":"2021-12-16T00:01:42Z","modified":"2023-02-01T05:07:06Z","updated_at":"2026-11-02T14:50:28.921795Z"}],"nvd":[{"id":"CVE-2021-43892","description":"Microsoft BizTalk ESB Toolkit Spoofing Vulnerability","status":"published","published":"2021-12-15T15:15:11.29Z","modified":"2026-06-17T04:11:37.42Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:02.189991Z"}]}}