{"id":"CVE-2021-27459","aliases":["EUVD-2021-14213","GHSA-vg6w-cm2v-xcf3"],"status":"published","title":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer....","description":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.","severity":{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01752,"percentile":0.78078,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-434"],"published":"2021-05-20T11:51:40Z","modified":"2026-06-17T03:44:54Z","products":[{"vendor":"emerson","product":"x-stream_enhanced_xefd_firmware"},{"vendor":"emerson","product":"x-stream_enhanced_xegk_firmware"},{"vendor":"emerson","product":"x-stream_enhanced_xegp_firmware"},{"vendor":"emerson","product":"x-stream_enhanced_xexf_firmware"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-138-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27459"},{"url":"https://github.com/advisories/GHSA-vg6w-cm2v-xcf3"}],"sources":{"cve":[{"id":"CVE-2021-27459","description":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.","status":"published","published":"2021-05-20T11:51:40Z","modified":"2024-08-03T20:48:17.182Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-14213","description":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.","status":"published","published":"2021-05-20T11:51:40Z","modified":"2024-08-03T20:48:17Z","updated_at":"2026-11-03T03:24:49.368497Z"}],"ghsa":[{"id":"GHSA-vg6w-cm2v-xcf3","title":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer....","description":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.","status":"published","published":"2022-05-24T19:02:54Z","modified":"2023-01-29T05:06:18Z","cwes":["CWE-434"],"updated_at":"2026-11-02T14:45:59.496932Z"}],"nvd":[{"id":"CVE-2021-27459","description":"A vulnerability has been found in multiple revisions of Emerson Rosemount X-STREAM Gas Analyzer. The webserver of the affected products allows unvalidated files to be uploaded, which an attacker could utilize to execute arbitrary code.","status":"published","published":"2021-05-20T12:15:08.12Z","modified":"2026-06-17T03:44:54.203Z","cvss":[{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-434"],"updated_at":"2026-11-02T14:06:53.987491Z"}]}}