{"id":"CVE-2018-3875","aliases":["EUVD-2018-15661","GHSA-98wj-w9r7-fcxv"],"status":"published","title":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's...","description":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strncpy overflows the destination buffer, which has a size of 2,000 bytes. An attacker can send an arbitrarily long \"sessionToken\" value in order to exploit this vulnerability.","severity":{"version":"3.0","score":9.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-07","score":0.01534,"percentile":0.74973,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2018-09-10T19:29:00.5Z","modified":"2026-06-17T01:57:56Z","products":[{"vendor":"samsung","product":"smartthings hub sth-eth-250"},{"vendor":"samsung","product":"sth-eth-250_firmware"}],"references":[{"url":"https://talosintelligence.com/vulnerability_reports/TALOS-2018-0555","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-3875"},{"url":"https://github.com/advisories/GHSA-98wj-w9r7-fcxv"}],"sources":{"cve":[{"id":"CVE-2018-3875","description":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strncpy overflows the destination buffer, which has a size of 2,000 bytes. An attacker can send an arbitrarily long \"sessionToken\" value in order to exploit this vulnerability.","status":"published","published":"2018-09-10T20:00:00Z","modified":"2024-09-17T01:06:40.362Z","cvss":[{"version":"3.0","score":9.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"cna"}],"updated_at":"2026-11-02T14:35:05.262903Z"}],"euvd":[{"id":"EUVD-2018-15661","description":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strncpy overflows the destination buffer, which has a size of 2,000 bytes. An attacker can send an arbitrarily long \"sessionToken\" value in order to exploit this vulnerability.","status":"published","published":"2018-09-10T20:00:00Z","modified":"2024-09-17T01:06:40Z","cvss":[{"version":"3.0","score":9.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical"}],"updated_at":"2026-11-03T00:28:52.69419Z"}],"ghsa":[{"id":"GHSA-98wj-w9r7-fcxv","title":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's...","description":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strncpy overflows the destination buffer, which has a size of 2,000 bytes. An attacker can send an arbitrarily long \"sessionToken\" value in order to exploit this vulnerability.","status":"published","published":"2022-05-13T01:02:02Z","modified":"2023-02-01T05:02:29Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:49:55.565803Z"}],"nvd":[{"id":"CVE-2018-3875","description":"An exploitable buffer overflow vulnerability exists in the credentials handler of video-core's HTTP server of Samsung SmartThings Hub STH-ETH-250-Firmware version 0.20.17. The video-core process incorrectly extracts fields from a user-controlled JSON payload, leading to a buffer overflow on the stack. The strncpy overflows the destination buffer, which has a size of 2,000 bytes. An attacker can send an arbitrarily long \"sessionToken\" value in order to exploit this vulnerability.","status":"published","published":"2018-09-10T19:29:00.5Z","modified":"2026-06-17T01:57:56.56Z","cvss":[{"version":"3.1","score":9.9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"3.0","score":9.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","level":"critical","assessor":"secondary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:04:38.672108Z"}]}}