{"id":"CVE-2023-2683","aliases":["EUVD-2023-34147","GHSA-xgxr-3384-47xm"],"status":"published","title":"Connection update while closing connection may lead to denial-of-service","description":"A memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00291,"percentile":0.21882,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-400","CWE-401"],"published":"2023-06-15T19:05:21Z","modified":"2026-06-17T05:53:11Z","products":[{"vendor":"silabs","product":"bluetooth_low_energy_software_development_kit"},{"vendor":"silabs.com","product":"bluetooth sdk"}],"references":[{"url":"https://github.com/SiliconLabs","tags":["x_transferred","Not Applicable"]},{"url":"https://https://siliconlabs.lightning.force.com/sfc/servlet.shepherd/document/download/0698Y00000U2U1QQAV?operationContext=S1","tags":["x_transferred","Broken Link"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-2683"},{"url":"https://github.com/advisories/GHSA-xgxr-3384-47xm"}],"sources":{"cve":[{"id":"CVE-2023-2683","title":"Connection update while closing connection may lead to denial-of-service","description":"A memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.","status":"published","published":"2023-06-15T19:05:21.365Z","modified":"2024-12-11T21:13:24.613Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"cna"}],"cwes":["CWE-401"],"updated_at":"2026-11-02T14:35:23.645864Z"}],"euvd":[{"id":"EUVD-2023-34147","description":"A memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.","status":"published","published":"2023-06-15T19:05:21Z","modified":"2024-12-11T21:13:24Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"updated_at":"2026-11-03T00:04:36.46341Z"}],"ghsa":[{"id":"GHSA-xgxr-3384-47xm","title":"\nA memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an...","description":"\nA memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.\n\n","status":"published","published":"2023-06-15T21:30:25Z","modified":"2024-09-25T18:31:18Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium"}],"cwes":["CWE-400","CWE-401"],"updated_at":"2026-11-02T14:58:20.799511Z"}],"nvd":[{"id":"CVE-2023-2683","description":"A memory leak in the EFR32 Bluetooth LE stack 5.1.0 through 5.1.1 allows an attacker to send an invalid pairing message and cause future legitimate connection attempts to fail. A reset of the device immediately clears the error.","status":"published","published":"2023-06-15T20:15:09.26Z","modified":"2026-06-17T05:53:11.23Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"secondary"},{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"medium","assessor":"primary"}],"cwes":["CWE-401","CWE-400"],"updated_at":"2026-11-02T14:08:06.335469Z"}]}}