{"id":"CVE-2026-102693","summary":"RIOT: Remote Stack Buffer Overflow in ATWINC15x0 driver via unsanitized SSID","details":"RIOT is an open-source microcontroller operating system designed for Internet of Things devices and other embedded systems. Prior to 2026.04, the ATWINC15x0 driver's _atwinc15x0_sta_set_current_ssid function uses strcpy to copy an SSID without checking the destination size. When MODULE_ATWINC15X0_DYNAMIC_CONNECT is enabled, a nearby attacker can advertise a malformed or oversized SSID that is processed during Wi-Fi scanning, causing memory corruption and potentially a hard fault, denial of service, or code execution. This issue is fixed in version 2026.04.","aliases":["GHSA-gwgv-6976-hxrg"],"modified":"2026-10-17T10:30:44.739162692Z","published":"2026-10-16T16:49:45.584Z","database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-120","CWE-121"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102693.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/102xxx/CVE-2026-102693.json"},{"type":"FIX","url":"https://github.com/RIOT-OS/RIOT/commit/5209c1b84f9771342f079b7d5d94d8207fdd5f0a"},{"type":"WEB","url":"https://github.com/RIOT-OS/RIOT/releases/tag/2026.04"},{"type":"ADVISORY","url":"https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-gwgv-6976-hxrg"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-102693"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/riot-os/riot","events":[{"introduced":"0"},{"fixed":"d8545ea6059e98073d8ba6dfff969dd3dc735743"}],"database_specific":{"source":"AFFECTED_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"2026.04"}]}}],"versions":["2026.01-devel","2025.10-RC1","2025.10-devel","2025.07-RC1","2025.07-devel","2025.04-RC1","2025.04-devel","2025.01-RC1","2025.01-devel","2024.10-RC1","2024.10-devel","2024.07-RC1","2024.04","2024.07-devel","2024.04-RC1","2024.04-devel","2024.01-RC1","2024.01-devel","2023.10-RC1","2023.10-devel","2023.07-RC1","2023.07-devel","2023.04-RC1","2023.04-devel","2023.01-RC1","2023.01-devel","2022.10-RC1","2022.10-devel","2022.07-RC1","2022.07-devel","2022.04-RC1","2022.04-devel","2022.01-RC1","2022.01-devel","2021.10-RC1","2021.10-devel","2021.07-RC1","2021.07-devel","2021.04-RC1","2021.04-devel","2021.01-RC1","2021.01-devel","2020.10-RC1","2020.10-devel","2020.07-RC1","2020.07-devel","2020.04-RC1","2020.04-devel","2020.01-RC1","2020.01-devel","2019.10-RC1","2019.10-devel","2019.07-RC1","2019.07-devel","2019.04-RC1","2019.04-devel","2019.01-RC1","2018.10-devel","2018.07-RC1","2019.01-devel","2018.10-RC1","2018.07-devel","2018.04-RC1","2018.04-devel","2018.01-RC1","2018.01-devel","2017.10-RC1","2017.10-devel","2017.07-RC1","2017.07-devel","2017.04-RC1","2017.04-devel","2017.01-RC1","2017.01-devel","2016.10-RC1","2016.10-devel","2016.07-RC2","2016.07-RC1","2016.04-RC1","2016.07-devel","2016.03-devel","2015.12-RC1","2015.12-devel","2015.09-RC1","2014.12","2014.05","2014.01","2013.08"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-102693.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"}]}