{"id":"CVE-2026-98819","title":"kernel: Bluetooth: btintel: validate DDC record lengths (CVE-2026-98819)","summary":"A flaw was found in the Linux kernel's Intel Bluetooth driver. When processing Device Descriptor Configuration (DDC) records, the driver fails to properly validate record lengths, allowing integer wrapping and reading past buffer boundarie…","severity":"medium","cvss":4.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-125","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 8","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-10-18","updated":"2026-10-23","sourceUpdated":"2026-10-23T19:35:36+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98819.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98819.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98819"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2555248"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98819"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98819"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98819.mbox"},{"url":"https://git.kernel.org/stable/c/7df748aa9f9ecab514e5989ed89c9ba35b6e5574"},{"url":"https://git.kernel.org/stable/c/069031f569f1681f17e863f48c221a6091b47850"},{"url":"https://git.kernel.org/stable/c/b0fce76873a5e6a6820354409b26693ac5f8b251"},{"url":"https://git.kernel.org/stable/c/f3617369fbb30a4d2e54841ab8e92ca4fa211e56"},{"url":"https://git.kernel.org/stable/c/c9c15d4d8956df8c564f7c210e4dc5b9b820d97a"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00175,"epssPercentile":0.06974,"ingestedAt":"2026-10-18T16:47:32.474Z","slug":"CVE-2026-98819","body":"## Overview\n\nA flaw was found in the Linux kernel's Intel Bluetooth driver. When processing Device Descriptor Configuration (DDC) records, the driver fails to properly validate record lengths, allowing integer wrapping and reading past buffer boundaries. An attacker capable of supplying crafted firmware data could trigger an out-of-bounds read, leading to a Denial of Service (DoS) via a system crash.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98819.json)\n\n**kernel: Bluetooth: btintel: validate DDC record lengths** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-23.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 8\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 8\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\n## Remediation\n\nFix deferred","depth":"sunlit","depthScore":24,"depthScoreParts":{"impact":24.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":228655,"id":"CVE-2026-98819","ts":1792844834367,"field":"cvss","old":null,"new":"4.4"},{"seq":228654,"id":"CVE-2026-98819","ts":1792844834367,"field":"severity","old":"none","new":"medium"}]}