{"cve":"CVE-2026-63908","nvd":{"published":"2026-07-19T16:17:08.620","modified":"2026-10-30T14:29:59.650","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nInput: atmel_mxt_ts - fix boundary check in mxt_prepare_cfg_mem\n\nWhen a configuration file provides an object size that is larger than the\ndriver's known mxt_obj_size(object), the driver intends to discard the\nextra bytes.\n\nThe loop iterates using for (i = 0; i < size; i++). Inside the loop, the\ncondition to skip processing extra bytes is:\n\n    if (i > mxt_obj_size(object))\n        continue;\n\nSince i is a 0-based index, the valid indices for the object are 0 through\nmxt_obj_size(object) - 1.\n\nWhen i == mxt_obj_size(object), the condition evaluates to false, and the\ncode processes the byte instead of discarding it.\n\nThis causes the code to calculate byte_offset = reg + i - cfg->start_ofs\nand writes the byte there, overwriting exactly one byte of the adjacent\ninstance or object.\n\nUpdate the boundary check to skip extra bytes correctly by using >=.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-835"],"references":["https://git.kernel.org/stable/c/1017e1c6c6c49cccbcda9bbcfa49e50b0b6dad39","https://git.kernel.org/stable/c/5c3681c3abc35cfac6b702251382312c60d96bc2","https://git.kernel.org/stable/c/6c6b989b4ebf22b086fdfcac2163b5cb55e34d8f","https://git.kernel.org/stable/c/7f95f4792c0dc767fcb8e405391e779ab419d55a","https://git.kernel.org/stable/c/862a1a32b5190241fce7a7d20229539a3926f31e"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-30T14:49:48.263840089+00:00"},"epss":{"cve":"CVE-2026-63908","score":0.00211,"percentile":0.11342,"date":"2026-10-30"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}