{"id":"CVE-2021-22684","aliases":["EUVD-2021-9820","GHSA-4cwm-fmh5-v7xw"],"status":"published","title":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and...","description":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and mm_zalloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.01105,"percentile":0.66066,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-190"],"published":"2021-08-31T16:38:19Z","modified":"2026-06-17T03:37:34Z","products":[{"vendor":"samsung","product":"tizenrt"}],"references":[{"url":"https://us-cert.cisa.gov/ics/advisories/icsa-21-119-04","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-22684"},{"url":"https://github.com/advisories/GHSA-4cwm-fmh5-v7xw"}],"sources":{"cve":[{"id":"CVE-2021-22684","description":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and mm_zalloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash","status":"published","published":"2021-08-31T16:38:19Z","modified":"2024-08-03T18:51:07.34Z","cwes":["CWE-190"],"updated_at":"2026-11-02T14:32:57.701381Z"}],"euvd":[{"id":"EUVD-2021-9820","description":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and mm_zalloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash","status":"published","published":"2021-08-31T16:38:19Z","modified":"2024-08-03T18:51:07Z","updated_at":"2026-11-03T03:25:01.606931Z"}],"ghsa":[{"id":"GHSA-4cwm-fmh5-v7xw","title":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and...","description":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and mm_zalloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash","status":"published","published":"2022-05-24T19:12:35Z","modified":"2023-01-30T05:01:51Z","cwes":["CWE-190"],"updated_at":"2026-11-02T14:46:30.304291Z"}],"nvd":[{"id":"CVE-2021-22684","description":"Tizen RT RTOS version 3.0.GBB is vulnerable to integer wrap-around in functions_calloc and mm_zalloc. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash","status":"published","published":"2021-08-31T17:15:07.663Z","modified":"2026-06-17T03:37:34.563Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-190"],"updated_at":"2026-11-02T14:06:57.67549Z"}]}}