{"id":"CVE-2021-39658","aliases":["1732729","A-207479207","ASB-A-207479207","EUVD-2021-26015","GHSA-vrhh-9qjg-rj58"],"status":"published","title":"ismsEx service is a vendor service in unisoc equipment?ismsEx service is an extension of sms...","description":"ismsEx service is a vendor service in unisoc equipment。ismsEx service is an extension of sms system service，but it does not check the permissions of the caller，resulting in permission leaks。Third-party apps can use this service to arbitrarily modify and set system properties。Product: AndroidVersions: Android SoCAndroid ID: A-207479207","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":0.00573,"percentile":0.47695,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-276"],"published":"2022-02-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":":unknown:","fixed_in":["SoCVersion:2022-02-05"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":":unknown:","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"SoCVersion:0"},{"fixed":"SoCVersion:2022-02-05"}]}],"versions":["SoCVersion"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://source.android.com/security/bulletin/2022-02-01","tags":["x_refsource_MISC","x_transferred","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-39658"},{"url":"https://github.com/advisories/GHSA-vrhh-9qjg-rj58"}],"sources":{"cve":[{"id":"CVE-2021-39658","description":"ismsEx service is a vendor service in unisoc equipment。ismsEx service is an extension of sms system service，but it does not check the permissions of the caller，resulting in permission leaks。Third-party apps can use this service to arbitrarily modify and set system properties。Product: AndroidVersions: Android SoCAndroid ID: A-207479207","status":"published","published":"2022-02-11T17:40:47Z","modified":"2024-08-04T02:13:37.704Z","updated_at":"2026-11-02T14:33:09.540052Z"}],"euvd":[{"id":"EUVD-2021-26015","description":"ismsEx service is a vendor service in unisoc equipment。ismsEx service is an extension of sms system service，but it does not check the permissions of the caller，resulting in permission leaks。Third-party apps can use this service to arbitrarily modify and set system properties。Product: AndroidVersions: Android SoCAndroid ID: A-207479207","status":"published","published":"2022-02-11T17:40:47Z","modified":"2024-08-04T02:13:37Z","updated_at":"2026-11-03T03:24:22.709283Z"}],"ghsa":[{"id":"GHSA-vrhh-9qjg-rj58","title":"ismsEx service is a vendor service in unisoc equipment?ismsEx service is an extension of sms...","description":"ismsEx service is a vendor service in unisoc equipment?ismsEx service is an extension of sms system service?but it does not check the permissions of the caller?resulting in permission leaks?Third-party apps can use this service to arbitrarily modify and set system properties?Product: AndroidVersions: Android SoCAndroid ID: A-207479207","status":"published","published":"2022-02-12T00:00:44Z","modified":"2023-02-03T05:06:00Z","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"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:53:49.735091Z"}],"nvd":[{"id":"CVE-2021-39658","description":"ismsEx service is a vendor service in unisoc equipment。ismsEx service is an extension of sms system service，but it does not check the permissions of the caller，resulting in permission leaks。Third-party apps can use this service to arbitrarily modify and set system properties。Product: AndroidVersions: Android SoCAndroid ID: A-207479207","status":"published","published":"2022-02-11T18:15:10.06Z","modified":"2026-06-17T04:03:57.29Z","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":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-276"],"updated_at":"2026-11-02T14:07:04.6896Z"}],"osv":[{"id":"ASB-A-207479207","description":"ismsEx service is a vendor service in unisoc equipment。ismsEx service is an extension of sms system service，but it does not check the permissions of the caller，resulting in permission leaks。Third-party apps can use this service to arbitrarily modify and set system properties。","status":"published","published":"2022-02-01T00:00:00Z","modified":"2026-11-11T16:12:36.322289056Z","updated_at":"2026-11-10T17:35:05.376141Z"}]}}