{"id":"CVE-2026-89583","title":"kernel: Bluetooth: eir: Fix OOB read in eir_get_service_data() (CVE-2026-89583)","summary":"A flaw was found in the Linux kernel's Bluetooth subsystem. An out-of-bounds (OOB) read vulnerability exists in the `eir_get_service_data()` function due to incorrect length calculation when parsing Extended Inquiry Response (EIR) advertis…","severity":"high","cvss":7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","cvssSource":"vendor","cwe":"CWE-125","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-09-11","updated":"2026-09-14","sourceUpdated":"2026-09-14T18:38:27+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89583.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89583.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89583"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532057"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89583"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89583"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89583.mbox"},{"url":"https://git.kernel.org/stable/c/b6902adf81ea2ce14b1040dd97b6980050a8125a"},{"url":"https://git.kernel.org/stable/c/1a28aae7f1fc8c06c0d02f153541be4fc7bacb74"},{"url":"https://git.kernel.org/stable/c/815fc98c227a78cbd93d4c29f2833705b7c2bc0f"},{"url":"https://git.kernel.org/stable/c/c21fa79301d7d6ac0a4ec6c51e8ba10beaa08c50"},{"url":"https://git.kernel.org/stable/c/bb56e97bd67614238c1c0a4084704ccadbb875b4"},{"url":"https://git.kernel.org/stable/c/4beb198bc59b242404a47c21990bc84165052c8a"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00271,"epssPercentile":0.19546,"scores":{"vendor":7,"cna":8.1},"ingestedAt":"2026-09-14T15:23:07.451Z","slug":"CVE-2026-89583","body":"## Overview\n\nA flaw was found in the Linux kernel's Bluetooth subsystem. An out-of-bounds (OOB) read vulnerability exists in the `eir_get_service_data()` function due to incorrect length calculation when parsing Extended Inquiry Response (EIR) advertising data. A remote attacker, by sending a specially crafted periodic advertising payload, could exploit this to read sensitive information from kernel memory. This could lead to the disclosure of internal kernel data to a local user.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89583.json)\n\n**kernel: Bluetooth: eir: Fix OOB read in eir_get_service_data()** — rated Moderate by Red Hat. Released 2026-09-11, updated 2026-09-14.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\nNot affected:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 7\n- Red Hat Enterprise Linux 8\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nAffected","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":38.5,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":204187,"id":"CVE-2026-89583","ts":1789490238317,"field":"cvss","old":"8.1","new":"7"},{"seq":197894,"id":"CVE-2026-89583","ts":1789384320845,"field":"cvss","old":"6.8","new":"8.1"},{"seq":197893,"id":"CVE-2026-89583","ts":1789384320845,"field":"severity","old":"medium","new":"high"},{"seq":183739,"id":"CVE-2026-89583","ts":1789356677182,"field":"cvss","old":"8.1","new":"6.8"},{"seq":183738,"id":"CVE-2026-89583","ts":1789356677182,"field":"severity","old":"high","new":"medium"},{"seq":153398,"id":"CVE-2026-89583","ts":1789285350354,"field":"cvss","old":null,"new":"8.1"},{"seq":153397,"id":"CVE-2026-89583","ts":1789285350354,"field":"severity","old":"none","new":"high"},{"seq":109594,"id":"CVE-2026-89583","ts":1789183732549,"field":"cvss","old":null,"new":"6.8"},{"seq":109593,"id":"CVE-2026-89583","ts":1789183732549,"field":"severity","old":"none","new":"medium"}]}