{"id":"CVE-2021-27499","aliases":["EUVD-2021-14253","GHSA-47g5-g8gc-h4qg"],"status":"published","title":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7...","description":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00475,"percentile":0.41539,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-329","CWE-330"],"published":"2021-08-02T20:42:09Z","modified":"2026-06-17T03:44:59Z","products":[{"vendor":"ypsomed","product":"mylife"},{"vendor":"ypsomed","product":"mylife_cloud"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsma-21-196-01","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27499"},{"url":"https://github.com/advisories/GHSA-47g5-g8gc-h4qg"}],"sources":{"cve":[{"id":"CVE-2021-27499","description":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.","status":"published","published":"2021-08-02T20:42:09Z","modified":"2024-08-03T21:26:09.263Z","cwes":["CWE-329"],"updated_at":"2026-11-02T14:33:04.679189Z"}],"euvd":[{"id":"EUVD-2021-14253","description":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.","status":"published","published":"2021-08-02T20:42:09Z","modified":"2024-08-03T21:26:09Z","updated_at":"2026-11-03T03:24:48.919164Z"}],"ghsa":[{"id":"GHSA-47g5-g8gc-h4qg","title":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7...","description":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.","status":"published","published":"2022-05-24T19:09:29Z","modified":"2023-07-09T05:02:06Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","level":"medium"}],"cwes":["CWE-329","CWE-330"],"updated_at":"2026-11-02T14:54:42.043841Z"}],"nvd":[{"id":"CVE-2021-27499","description":"Ypsomed mylife Cloud, mylife Mobile Application, Ypsomed mylife Cloud: All versions prior to 1.7.2, Ypsomed mylife App: All versions prior to 1.7.5,The application layer encryption of the communication protocol between the Ypsomed mylife App and mylife Cloud uses non-random IVs, which allows man-in-the-middle attackers to tamper with messages.","status":"published","published":"2021-08-02T21:15:08.05Z","modified":"2026-06-17T03:44:59.037Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/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"}],"cwes":["CWE-329","CWE-330"],"updated_at":"2026-11-02T14:06:56.562207Z"}]}}