{"id":"CVE-2021-27504","aliases":["EUVD-2021-14258","GHSA-6627-82c3-q8c9"],"status":"published","title":"Texas Instruments FREERTOS Integer Overflow or Wraparound","description":"Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on extremely large values, which can trigger \nan integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in\n code execution.","severity":{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00279,"percentile":0.20597,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2023-11-21T17:43:12Z","modified":"2026-06-17T03:44:59Z","products":[{"vendor":"amazon","product":"freertos"},{"vendor":"texas instruments","product":"cc32xx"},{"vendor":"texas instruments","product":"simplelink msp432e4xx"},{"vendor":"texas instruments","product":"simplelink-cc13xx"},{"vendor":"texas instruments","product":"simplelink-cc26xx"},{"vendor":"texas instruments","product":"simplelink-cc32xx"},{"vendor":"ti","product":"simplelink_cc13xx_software_development_kit"},{"vendor":"ti","product":"simplelink_cc26xx_software_development_kit"},{"vendor":"ti","product":"simplelink_cc32xx_software_development_kit"},{"vendor":"ti","product":"simplelink_msp432e401y"},{"vendor":"ti","product":"simplelink_msp432e411y"}],"references":[{"url":"https://www.cisa.gov/news-events/ics-advisories/icsa-21-119-04","tags":["x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://www.ti.com/tool/TI-RTOS-MCU","tags":["x_transferred","Product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-27504"},{"url":"https://github.com/advisories/GHSA-6627-82c3-q8c9"}],"sources":{"cve":[{"id":"CVE-2021-27504","title":"Texas Instruments FREERTOS Integer Overflow or Wraparound","description":"Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on extremely large values, which can trigger \nan integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in\n code execution.","status":"published","published":"2023-11-21T17:43:12.12Z","modified":"2024-08-03T21:26:09.768Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:33:04.360272Z"}],"euvd":[{"id":"EUVD-2021-14258","description":"Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on extremely large values, which can trigger \nan integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in\n code execution.","status":"published","published":"2023-11-21T17:43:12Z","modified":"2024-08-03T21:26:09Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-03T03:24:48.919164Z"}],"ghsa":[{"id":"GHSA-6627-82c3-q8c9","title":"Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on...","description":"Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on extremely large values, which can trigger \nan integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in\n code execution.","status":"published","published":"2023-11-21T18:30:26Z","modified":"2023-11-21T18:30:32Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:55:04.479575Z"}],"nvd":[{"id":"CVE-2021-27504","description":"Texas Instruments devices running FREERTOS, malloc returns a valid \npointer to a small buffer on extremely large values, which can trigger \nan integer overflow vulnerability in 'malloc' for FreeRTOS, resulting in\n code execution.","status":"published","published":"2023-11-21T18:15:07.713Z","modified":"2026-06-17T03:44:59.673Z","cvss":[{"version":"3.1","score":7.4,"vector":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:07:07.764332Z"}]}}