{"id":"CVE-2021-43896","aliases":["AZL-7049","BIT-powershell-2021-43896","EUVD-2021-30758","GHSA-2w8h-77mr-j4fw"],"status":"published","title":"Microsoft PowerShell Spoofing Vulnerability","description":"Microsoft PowerShell Spoofing Vulnerability","severity":{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.02452,"percentile":0.84526,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2021-12-15T14:15:38Z","modified":"2026-10-24T10:30:38Z","fixes":[{"ecosystem":"Azure Linux:2","package":"powershell","fixed_in":["7.2.1-1"],"sources":["osv"]},{"ecosystem":"Bitnami","package":"powershell","fixed_in":["7.2.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:2","package":"powershell","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"7.2.1-1"}]}]},{"source":"osv","ecosystem":"Bitnami","package":"powershell","ranges":[{"type":"SEMVER","events":[{"introduced":"7.2.0"},{"fixed":"7.2.1"}]}]}],"products":[{"vendor":"microsoft","product":"cbl mariner 1.0 arm"},{"vendor":"microsoft","product":"cbl mariner 1.0 x64"},{"vendor":"microsoft","product":"cbl mariner 2.0 arm"},{"vendor":"microsoft","product":"cbl mariner 2.0 x64"},{"vendor":"microsoft","product":"powershell"},{"vendor":"microsoft","product":"powershell 7.2"}],"references":[{"url":"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-43896","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-43896","tags":["web"]},{"url":"https://github.com/advisories/GHSA-2w8h-77mr-j4fw"}],"sources":{"cve":[{"id":"CVE-2021-43896","title":"Microsoft PowerShell Spoofing Vulnerability","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2021-12-15T14:15:38Z","modified":"2024-08-04T04:10:17.045Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"cna"}],"updated_at":"2026-11-02T14:32:56.689433Z"}],"euvd":[{"id":"EUVD-2021-30758","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2021-12-15T14:15:38Z","modified":"2024-08-04T04:10:17Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-03T03:24:12.599691Z"}],"ghsa":[{"id":"GHSA-2w8h-77mr-j4fw","title":"Microsoft PowerShell Spoofing Vulnerability","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2021-12-16T00:01:42Z","modified":"2023-01-30T05:03:35Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T14:46:51.868413Z"}],"nvd":[{"id":"CVE-2021-43896","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2021-12-15T15:15:11.373Z","modified":"2026-06-17T04:11:37.727Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:N/I:P/A:N","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:07:02.189991Z"}],"osv":[{"id":"AZL-7049","title":"CVE-2021-43896 affecting package powershell for versions less than 7.2.1-1","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2021-12-15T15:15:11Z","modified":"2026-04-21T04:36:24.616712Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:28:08.907584Z"},{"id":"CVE-2021-43896","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2021-12-15T15:15:11.373Z","modified":"2026-10-24T10:30:38.367127022Z","cvss":[{"version":"3.1","score":5.5,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:21.877444Z"},{"id":"BIT-powershell-2021-43896","title":"Microsoft PowerShell Spoofing Vulnerability","description":"Microsoft PowerShell Spoofing Vulnerability","status":"published","published":"2025-09-04T17:48:37.745Z","modified":"2026-09-08T08:48:04.833516169Z","updated_at":"2026-11-02T15:28:34.724063Z"}]}}