{"id":"CVE-2025-44557","aliases":["EUVD-2025-19417","GHSA-5m62-c8gp-6qqv"],"status":"published","title":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66...","description":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypass the pairing process and authentication via a crafted pairing_failed packet.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-10","score":0.00282,"percentile":0.20865,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-303"],"published":"2025-06-27T00:00:00Z","modified":"2026-06-17T09:25:04Z","references":[{"url":"https://www.infineon.com/cms/en/design-support/tools/sdk/psoc-software/psoc-4-components/psoc-creator-component-datasheet-bluetooth-low-energy-ble/"},{"url":"https://github.com/yangting111/BLE_TEST/blob/main/result/PoC/Cypress/Auth_bypass.md"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-44557"},{"url":"https://www.infineon.com/cms/en/design-support/tools/sdk/psoc-software/psoc-4-components/psoc-creator-component-datasheet-bluetooth-low-energy-ble"},{"url":"https://github.com/advisories/GHSA-5m62-c8gp-6qqv"}],"sources":{"cve":[{"id":"CVE-2025-44557","description":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypass the pairing process and authentication via a crafted pairing_failed packet.","status":"published","published":"2025-06-27T00:00:00Z","modified":"2025-07-02T14:22:39.151Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"adp"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:32:34.096798Z"}],"euvd":[{"id":"EUVD-2025-19417","description":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypass the pairing process and authentication via a crafted pairing_failed packet.","status":"published","published":"2025-06-27T00:00:00Z","modified":"2025-07-02T14:22:39Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T20:32:14.284181Z"}],"ghsa":[{"id":"GHSA-5m62-c8gp-6qqv","title":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66...","description":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypass the pairing process and authentication via a crafted pairing_failed packet.","status":"published","published":"2025-06-27T18:30:43Z","modified":"2025-07-02T15:31:37Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T15:02:53.302581Z"}],"nvd":[{"id":"CVE-2025-44557","description":"A state machine transition flaw in the Bluetooth Low Energy (BLE) stack of Cypress PSoC4 v3.66 allows attackers to bypass the pairing process and authentication via a crafted pairing_failed packet.","status":"published","published":"2025-06-27T17:15:33.04Z","modified":"2026-06-17T09:25:04.967Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-303"],"updated_at":"2026-11-02T14:11:14.781314Z"}]}}