{"id":"CVE-2025-5867","aliases":["EUVD-2025-17443","GHSA-mq4q-q9rw-jvph"],"status":"published","title":"RT-Thread lwp_syscall.c csys_sendto null pointer dereference","description":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.","severity":{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:A/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":0.01214,"percentile":0.68769,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-404","CWE-476"],"published":"2025-06-09T07:31:04Z","modified":"2026-10-28T02:30:53Z","products":[{"vendor":"rt-thread","product":"rt-thread"}],"references":[{"url":"https://vuldb.com/?id.311626","tags":["vdb-entry","technical-description","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://vuldb.com/?ctiid.311626","tags":["signature","permissions-required","Permissions Required","VDB Entry","report"]},{"url":"https://vuldb.com/?submit.584129","tags":["third-party-advisory","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://github.com/RT-Thread/rt-thread/issues/10299","tags":["issue-tracking","Exploit","Issue Tracking","Third Party Advisory","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-5867","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-mq4q-q9rw-jvph"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/5xxx/CVE-2025-5867.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2025-5867","title":"RT-Thread lwp_syscall.c csys_sendto null pointer dereference","description":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.","status":"published","published":"2025-06-09T07:31:04.833Z","modified":"2025-06-09T18:07:33.138Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:A/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":8,"vector":"CVSS:3.1/AV:A/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":8,"vector":"CVSS:3.0/AV:A/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":7.7,"vector":"AV:A/AC:L/Au:S/C:C/I:C/A:C/E:ND/RL:ND/RC:UR","assessor":"cna"}],"cwes":["CWE-476","CWE-404"],"updated_at":"2026-11-02T14:32:30.302289Z"}],"euvd":[{"id":"EUVD-2025-17443","description":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.","status":"published","published":"2025-06-09T07:31:04Z","modified":"2025-06-09T18:07:33Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:A/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":"2026-11-02T20:32:27.346488Z"}],"ghsa":[{"id":"GHSA-mq4q-q9rw-jvph","title":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects...","description":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.","status":"published","published":"2025-06-09T09:31:04Z","modified":"2025-07-11T18:31:31Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:A/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":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-404","CWE-476"],"updated_at":"2026-11-02T15:02:59.952815Z"}],"nvd":[{"id":"CVE-2025-5867","description":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.","status":"published","published":"2025-06-09T08:15:22.14Z","modified":"2026-06-17T09:48:54.733Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:A/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":8,"vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":7.7,"vector":"AV:A/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"secondary"}],"cwes":["CWE-404","CWE-476"],"updated_at":"2026-11-02T14:11:11.4244Z"}],"osv":[{"id":"CVE-2025-5867","title":"RT-Thread lwp_syscall.c csys_sendto null pointer dereference","description":"A vulnerability classified as critical was found in RT-Thread 5.1.0. This vulnerability affects the function csys_sendto of the file rt-thread/components/lwp/lwp_syscall.c. The manipulation of the argument to leads to null pointer dereference.","status":"published","published":"2025-06-09T07:31:04.833Z","modified":"2026-10-28T02:30:53.613916767Z","cvss":[{"version":"4.0","score":8.6,"vector":"CVSS:4.0/AV:A/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-404","CWE-476"],"updated_at":"2026-11-02T15:44:51.190588Z"}]}}