{"id":"CVE-2026-80707","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80707","summary":"can: j1939: transport: j1939_session_fresh_new(): initialize receive buffer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: j1939: transport: j1939_session_fresh_new(): initialize receive buffer\n\nZero the allocated buffer in j1939_session_fresh_new() to ensure it\ncontains no residual data.\n\nWhile there is a potential performance impact if users allocate maximum\nsized ETP buffers, most real-world use cases are not noticeably affected\nsince the maximum known buffer size is typically around 65K.\n\n[mkl: add Message-ID]","published":"2026-08-28T06:53:08.244Z","modified":"2026-08-30T03:48:21.455870223Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.265"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269"},{"type":"WEB","url":"https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80707.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80707"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:48:21.455870223Z"}}