{"id":"CVE-2026-98575","title":"kernel: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid() (CVE-2026-98575)","summary":"A flaw was found in the Linux kernel's PN533 NFC (Near Field Communication) driver. An attacker capable of connecting a malicious or malfunctioning USB device can supply a crafted response frame with an arbitrary data length value. Because…","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-125","vendor":"Red Hat","product":"Linux","affected":["Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 8db3b1e012a8b25078dfa1efabe3d0cd2916dcba","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 74b3fbc60907ee97e3af3249091f57351b53a6d6","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 8a0f1bb790d964893db7fc59febda9a534db07b3","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < ea82b7576793219fa10a8b545f8338998b2a9ce2","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 72b8b2126e854d6756a1aa4bdc66d7457b832294","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < e72cbedc4596e808d22dd2b9fff666ece76f8dd6","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 2450a388367231fb7dd798538f393af227c00c4d","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < b61732f47316d45f27706db7812950145d3327b5","Linux 4.7"],"published":"2026-10-18","updated":"2026-10-20","sourceUpdated":"2026-10-20T03:34:58+00:00","source":"CSAF","sourceUrl":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98575.json","references":[{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98575.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98575"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2554938"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98575"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98575"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98575.mbox"},{"url":"https://git.kernel.org/stable/c/8db3b1e012a8b25078dfa1efabe3d0cd2916dcba"},{"url":"https://git.kernel.org/stable/c/74b3fbc60907ee97e3af3249091f57351b53a6d6"},{"url":"https://git.kernel.org/stable/c/8a0f1bb790d964893db7fc59febda9a534db07b3"},{"url":"https://git.kernel.org/stable/c/ea82b7576793219fa10a8b545f8338998b2a9ce2"},{"url":"https://git.kernel.org/stable/c/72b8b2126e854d6756a1aa4bdc66d7457b832294"},{"url":"https://git.kernel.org/stable/c/e72cbedc4596e808d22dd2b9fff666ece76f8dd6"},{"url":"https://git.kernel.org/stable/c/2450a388367231fb7dd798538f393af227c00c4d"},{"url":"https://git.kernel.org/stable/c/b61732f47316d45f27706db7812950145d3327b5"}],"tags":["csaf","vex","red-hat","cve.org"],"epss":0.00216,"epssPercentile":0.11992,"ingestedAt":"2026-10-18T15:45:12.255Z","slug":"CVE-2026-98575","body":"## Overview\n\nA flaw was found in the Linux kernel's PN533 NFC (Near Field Communication) driver. An attacker capable of connecting a malicious or malfunctioning USB device can supply a crafted response frame with an arbitrary data length value. Because the driver fails to validate this length against maximum frame boundaries before indexing the buffer, an out-of-bounds read occurs, potentially causing a Denial of Service (DoS) via system crash or disclosing sensitive kernel memory.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-10-20 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98575.json)\n\n**kernel: nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()** — rated Moderate by Red Hat. Released 2026-10-18, updated 2026-10-20.\n\nNot affected:\n\n- Red Hat Enterprise Linux 10\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\nRefer to the advisory for fix availability.","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":34.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":225779,"id":"CVE-2026-98575","ts":1792498451003,"field":"cvss","old":null,"new":"6.2"},{"seq":225778,"id":"CVE-2026-98575","ts":1792498451003,"field":"severity","old":"none","new":"medium"}]}