{"id":"CVE-2023-21242","aliases":["A-277824547","ASB-A-277824547","EUVD-2023-25410","GHSA-mrx5-4724-2c6h"],"status":"published","title":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an...","description":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","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":"2026-11-12","score":0.00532,"percentile":0.45439,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2023-08-01T00:00:00Z","modified":"2026-11-05T16:32:28Z","fixes":[{"ecosystem":"Android","package":"platform/packages/modules/Wifi","fixed_in":["13-next:2023-08-01","13:2023-08-01"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Android","package":"platform/packages/modules/Wifi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13-next:0"},{"fixed":"13-next:2023-08-01"}]}],"versions":["13-next"]},{"source":"osv","ecosystem":"Android","package":"platform/packages/modules/Wifi","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"13:0"},{"fixed":"13:2023-08-01"}]}],"versions":["13"]}],"products":[{"vendor":"google","product":"android"}],"references":[{"url":"https://android.googlesource.com/platform/packages/modules/Wifi/+/72e903f258b5040b8f492cf18edd124b5a1ac770","tags":["x_transferred","Patch","fix"]},{"url":"https://source.android.com/security/bulletin/2023-08-01","tags":["x_transferred","Patch","Vendor Advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-21242"},{"url":"https://github.com/advisories/GHSA-mrx5-4724-2c6h"}],"sources":{"cve":[{"id":"CVE-2023-21242","description":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n","status":"published","published":"2023-08-14T20:58:52.284Z","modified":"2024-10-09T14:26:12.319Z","updated_at":"2026-11-02T14:35:20.368244Z"}],"euvd":[{"id":"EUVD-2023-25410","description":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n","status":"published","published":"2023-08-14T20:58:52Z","modified":"2024-10-09T14:26:12Z","cvss":[{"version":"","score":0,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"none"}],"updated_at":"2026-11-03T00:27:43.39457Z"}],"ghsa":[{"id":"GHSA-mrx5-4724-2c6h","title":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an...","description":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n","status":"published","published":"2023-08-14T21:30:59Z","modified":"2024-04-04T06:55:53Z","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"}],"updated_at":"2026-11-02T14:56:47.061253Z"}],"nvd":[{"id":"CVE-2023-21242","description":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.\n\n","status":"published","published":"2023-08-14T21:15:11.733Z","modified":"2026-06-17T05:32:09.437Z","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"}],"updated_at":"2026-11-02T14:08:24.487686Z"}],"osv":[{"id":"ASB-A-277824547","description":"In isServerCertChainValid of InsecureEapNetworkHandler.java, there is a possible way to trust an imposter server due to a logic error in the code. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","status":"published","published":"2023-08-01T00:00:00Z","modified":"2026-11-10T17:02:23.040266809Z","updated_at":"2026-11-10T17:35:05.865114Z"}]}}