{"id":"CVE-2026-98545","title":"kernel: ata: libata-scsi: bound the ATA passthru sense descriptor writes (CVE-2026-98545)","summary":"A flaw was found in the Linux kernel's libata SCSI subsystem. When processing ATA pass-through commands to an ATAPI storage device, the kernel fails to properly validate the length byte returned in the device's sense response buffer. A mal…","severity":"medium","cvss":6.2,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":"CWE-787","vendor":"Red Hat","product":"Red Hat Enterprise Linux 10","affected":["enterprise_linux 10","enterprise_linux 6"],"published":"2026-10-18","updated":"2026-10-19","sourceUpdated":"2026-10-19T23:54:24+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98545.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98545.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98545"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554942"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98545"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98545"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98545.mbox"},{"url":"https://git.kernel.org/stable/c/c698f6deabf680f8f4a1727ef2dc80fe78815fbf"},{"url":"https://git.kernel.org/stable/c/d9a7147b93624660626cd7c3b1143715699e1f5c"},{"url":"https://git.kernel.org/stable/c/1603abb0c50420e97cf4a1feddbd5e183c5fdf86"},{"url":"https://git.kernel.org/stable/c/80fbb0bc4d11683c88f2f9d3997ea02fcada5408"},{"url":"https://git.kernel.org/stable/c/80320b278fea07ffcda3f57b67b61658e0a4e1ca"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00206,"epssPercentile":0.10482,"ingestedAt":"2026-10-18T15:45:12.267Z","slug":"CVE-2026-98545","body":"## Overview\n\nA flaw was found in the Linux kernel's libata SCSI subsystem. When processing ATA pass-through commands to an ATAPI storage device, the kernel fails to properly validate the length byte returned in the device's sense response buffer. A malicious or faulty device can exploit this issue to trigger out-of-bounds memory reads and writes, leading to memory corruption, system instability, or 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 6 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10 · updated 2026-10-19 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98545.json)\n\n**kernel: ata: libata-scsi: bound the ATA passthru sense descriptor writes** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-19.\n\nAffected:\n\n- Red Hat Enterprise Linux 10\n- Red Hat Enterprise Linux 6\n\nNo fix planned:\n\n- Red Hat Enterprise Linux 6\n- Red Hat Enterprise Linux 10\n\nNot affected:\n\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\nOut of support scope","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":34.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225837,"id":"CVE-2026-98545","ts":1792498472816,"field":"cvss","old":null,"new":"6.2"},{"seq":225836,"id":"CVE-2026-98545","ts":1792498472816,"field":"severity","old":"none","new":"medium"}]}