{"id":"CVE-2023-50096","aliases":["EUVD-2023-54926","GHSA-pjh6-2v65-x4fj"],"status":"published","title":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary...","description":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.006,"percentile":0.49189,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-120"],"published":"2024-01-01T00:00:00Z","modified":"2026-06-17T06:39:10Z","products":[{"vendor":"st","product":"x-cube-safea1"}],"references":[{"url":"https://github.com/elttam/publications/blob/master/writeups/CVE-2023-50096.md","tags":["x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-50096"},{"url":"https://github.com/advisories/GHSA-pjh6-2v65-x4fj"}],"sources":{"cve":[{"id":"CVE-2023-50096","description":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application.","status":"published","published":"2024-01-01T00:00:00Z","modified":"2024-09-09T17:21:45.294Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:35:34.923818Z"}],"euvd":[{"id":"EUVD-2023-54926","description":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application.","status":"published","published":"2024-01-01T00:00:00Z","modified":"2024-09-09T17:21:45Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T00:56:00.258951Z"}],"ghsa":[{"id":"GHSA-pjh6-2v65-x4fj","title":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary...","description":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application.","status":"published","published":"2024-01-01T18:30:25Z","modified":"2024-01-09T18:30:26Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:55:22.936224Z"}],"nvd":[{"id":"CVE-2023-50096","description":"STMicroelectronics STSAFE-A1xx middleware before 3.3.7 allows MCU code execution if an adversary has the ability to read from and write to the I2C bus. This is caused by an StSafeA_ReceiveBytes buffer overflow in the X-CUBE-SAFEA1 Software Package for STSAFE-A sample applications (1.2.0), and thus can affect user-written code that was derived from a published sample application.","status":"published","published":"2024-01-01T18:15:09.197Z","modified":"2026-06-17T06:39:10.047Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-120"],"updated_at":"2026-11-02T14:08:59.830468Z"}]}}