{"id":"CVE-2026-98731","title":"kernel: Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame() (CVE-2026-98731)","summary":"A flaw was found in the Linux kernel's Intel Bluetooth PCIe driver. An integer overflow vulnerability exists in the packet reception function when calculating the total length of incoming Bluetooth frames. An adjacent attacker within Bluet…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-190","vendor":"Red Hat","product":"Red Hat Enterprise Linux 9","affected":["enterprise_linux 10","enterprise_linux 9","openshift_container_platform 4"],"published":"2026-10-18","updated":"2026-10-23","sourceUpdated":"2026-10-23T01:11:55+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98731.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98731.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98731"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2555123"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98731"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98731"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98731.mbox"},{"url":"https://git.kernel.org/stable/c/c3a3842c109ac130c6db3aa0014cc8cd344928ad"},{"url":"https://git.kernel.org/stable/c/c3b5e6da4ba6485bffda9753d8339c28855207aa"},{"url":"https://git.kernel.org/stable/c/b2cb5ea1dc8cf829816370fc1399e6a1d2d1bca9"},{"url":"https://git.kernel.org/stable/c/7dbeb6935ac331b0cba6c41cabd8e9d02d5f64ea"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.0021,"epssPercentile":0.11154,"ingestedAt":"2026-10-18T16:47:32.505Z","slug":"CVE-2026-98731","body":"## Overview\n\nA flaw was found in the Linux kernel's Intel Bluetooth PCIe driver. An integer overflow vulnerability exists in the packet reception function when calculating the total length of incoming Bluetooth frames. An adjacent attacker within Bluetooth range could exploit this flaw by transmitting specially crafted frames with large data length values, bypassing buffer validation checks. This vulnerability can lead to improper packet truncation and cause a Denial of Service (DoS).\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 2026-10-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98731.json)\n\n**kernel: Bluetooth: btintel_pcie: fix plen overflow in btintel_pcie_recv_frame()** — 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 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 Enterprise Linux 9\n- Red Hat OpenShift Container Platform 4\n\n## Remediation\n\nFix deferred","depth":"sunlit","depthScore":36,"depthScoreParts":{"impact":35.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":228228,"id":"CVE-2026-98731","ts":1792758213448,"field":"cvss","old":null,"new":"6.5"},{"seq":228227,"id":"CVE-2026-98731","ts":1792758213448,"field":"severity","old":"none","new":"medium"}]}