{"id":"CVE-2026-80707","title":"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 da…","summary":"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 da…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-824"],"vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9"],"published":"2026-08-28","updated":"2026-10-16","sourceUpdated":"2026-10-16T20:18:07.550","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80707","references":[{"url":"https://git.kernel.org/stable/c/038bad8e16c2e28acf31f0b527a816fb23a57269","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/194d67e92197eb820f4c2c6605d9721333b3eba0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/348818277a3646d5b9fa60c9d20c00dc4bc86832","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8604a3b81b9d0ceaf04fee5f52e701f623a179f9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bbfa49d1e287de44994955b44d19281be3195b44","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d5b3613c7d69d8dcb4dd6704f1f463198ce9f6cf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eb96c58907922546e415e545fe9a14ea63b02719","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f3e120a34b336079479fa10f706f0636eaa6e751","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80707.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80707"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2525399"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80707"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80707"},{"url":"https://lore.kernel.org/linux-cve-announce/2026082807-CVE-2026-80707-cf56@gregkh/T"}],"tags":["nvd","csaf","vex","red-hat","cve.org","score-dispute"],"epss":0.00329,"epssPercentile":0.25896,"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-10-16T19:20:28.838708Z"},"scores":{"nvd":7.5,"vendor":5.5,"cna":7.5},"ingestedAt":"2026-10-16T19:46:24.305Z","slug":"CVE-2026-80707","body":"## Overview\n\nIn 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]\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80707.json)","depth":"twilight","depthScore":41,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":230429,"id":"CVE-2026-80707","ts":1793134643859,"field":"cvss","old":"5.5","new":"7.5"},{"seq":230428,"id":"CVE-2026-80707","ts":1793134643859,"field":"severity","old":"medium","new":"high"},{"seq":224352,"id":"CVE-2026-80707","ts":1792325102975,"field":"cvss","old":"7.5","new":"5.5"},{"seq":224351,"id":"CVE-2026-80707","ts":1792325102975,"field":"severity","old":"high","new":"medium"}]}