{"id":"CVE-2021-35067","aliases":["EUVD-2021-21711","GHSA-992r-fc94-v8jf"],"status":"published","title":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g...","description":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g., an attacker who sniffs a Close message can transmit an acceptable Open message).","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.00937,"percentile":0.61309,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-294"],"published":"2021-10-07T14:29:37Z","modified":"2026-06-17T03:57:04Z","products":[{"vendor":"meross","product":"msg100_firmware"}],"references":[{"url":"https://infosec.rm-it.de/?p=878\u0026preview=1\u0026_ppp=219bc85c2f","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://infosec.rm-it.de/2021/06/18/meross-smart-wi-fi-garage-door-opener-analysis/","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-35067"},{"url":"https://github.com/advisories/GHSA-992r-fc94-v8jf"}],"sources":{"cve":[{"id":"CVE-2021-35067","description":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g., an attacker who sniffs a Close message can transmit an acceptable Open message).","status":"published","published":"2021-10-07T14:29:37Z","modified":"2024-08-04T00:33:50.644Z","updated_at":"2026-11-02T14:33:09.864034Z"}],"euvd":[{"id":"EUVD-2021-21711","description":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g., an attacker who sniffs a Close message can transmit an acceptable Open message).","status":"published","published":"2021-10-07T14:29:37Z","modified":"2024-08-04T00:33:50Z","updated_at":"2026-11-03T03:24:30.986651Z"}],"ghsa":[{"id":"GHSA-992r-fc94-v8jf","title":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g...","description":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g., an attacker who sniffs a Close message can transmit an acceptable Open message).","status":"published","published":"2022-05-24T19:16:57Z","modified":"2023-01-30T05:02:37Z","cwes":["CWE-294"],"updated_at":"2026-11-02T14:46:40.912111Z"}],"nvd":[{"id":"CVE-2021-35067","description":"Meross MSG100 devices before 3.2.3 allow an attacker to replay the same data or similar data (e.g., an attacker who sniffs a Close message can transmit an acceptable Open message).","status":"published","published":"2021-10-07T15:15:10.643Z","modified":"2026-06-17T03:57:04.39Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"primary"},{"version":"2.0","score":5.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-294"],"updated_at":"2026-11-02T14:06:59.314106Z"}]}}