{"id":"CVE-2025-6693","aliases":["EUVD-2025-28759","GHSA-mq4w-gr2r-39x4"],"status":"published","title":"RT-Thread device.c sys_device_write memory corruption","description":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.","severity":{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00296,"percentile":0.22424,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119"],"published":"2025-06-26T13:00:15Z","modified":"2026-10-28T02:31:02Z","products":[{"vendor":"rt-thread","product":"rt-thread"}],"references":[{"url":"https://vuldb.com/?id.313959","tags":["vdb-entry","technical-description","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?ctiid.313959","tags":["signature","permissions-required","Permissions Required","VDB Entry","report"]},{"url":"https://vuldb.com/?submit.595813","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?submit.595814","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?submit.595827","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?submit.595869","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?submit.595870","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?submit.595871","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://github.com/RT-Thread/rt-thread/issues/10387","tags":["issue-tracking","Exploit","Issue Tracking","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6693","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mq4w-gr2r-39x4"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6693.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-6693","title":"RT-Thread device.c sys_device_write memory corruption","description":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2025-06-26T13:00:15.142Z","modified":"2025-06-26T13:21:53.779Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X","level":"high","assessor":"cna"},{"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/E:X/RL:X/RC:R","level":"high","assessor":"cna"},{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:R","level":"high","assessor":"cna"},{"version":"2.0","score":6.8,"vector":"AV:L/AC:L/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:32:40.072186Z"}],"euvd":[{"id":"EUVD-2025-28759","description":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2025-06-26T13:00:15Z","modified":"2025-06-26T13:21:53Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X","level":"high"}],"updated_at":"2026-11-02T20:32:16.561416Z"}],"ghsa":[{"id":"GHSA-mq4w-gr2r-39x4","title":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This...","description":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2025-06-26T18:31:25Z","modified":"2025-06-26T18:31:34Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"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"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:02:49.372577Z"}],"nvd":[{"id":"CVE-2025-6693","description":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2025-06-26T13:15:29.593Z","modified":"2026-06-17T10:02:23.63Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","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":"secondary"},{"version":"2.0","score":6.8,"vector":"AV:L/AC:L/Au:S/C:C/I:C/A:C","level":"medium","assessor":"secondary"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T14:11:14.781314Z"}],"osv":[{"id":"CVE-2025-6693","title":"RT-Thread device.c sys_device_write memory corruption","description":"A vulnerability, which was classified as critical, was found in RT-Thread up to 5.1.0. This affects the function sys_device_open/sys_device_read/sys_device_control/sys_device_init/sys_device_close/sys_device_write of the file components/drivers/core/device.c. The manipulation leads to memory corruption. It is possible to launch the attack on the local host. The vendor was contacted early about this disclosure but did not respond in any way.","status":"published","published":"2025-06-26T13:00:15.142Z","modified":"2026-10-28T02:31:02.282344454Z","cvss":[{"version":"4.0","score":8.5,"vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X","level":"high"}],"cwes":["CWE-119"],"updated_at":"2026-11-02T15:44:52.202386Z"}]}}