{"id":"CVE-2026-90137","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: fix password encoding bounds check\n\nThe password PSWD_ENCODINGS parser reads password_obj[elem + pos_values]\nwhile copying the supported passw…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: fix password encoding bounds check\n\nThe password PSWD_ENCODINGS parser reads password_obj[elem + pos_values]\nwhile copying the supported passw…","severity":"high","cvss":7.7,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 8646a3b5ee3a5b384a22a721f37c24274d974045 < c224759555a13735b0d67561d818cefe00c3309a","Linux >= 8646a3b5ee3a5b384a22a721f37c24274d974045 < 59fe8491ddaa03a510b352552e6ee291e7ce45d3","Linux >= 8646a3b5ee3a5b384a22a721f37c24274d974045 < ace1ba5fca0ab775b3641e154bcbc3ccde26a71a","Linux >= 8646a3b5ee3a5b384a22a721f37c24274d974045 < 8a7499b8fd34438c1b11964e0e7ef5bd590fec92","Linux >= 8646a3b5ee3a5b384a22a721f37c24274d974045 < e213939ed9e6e6badf7aa48c4c8dd9a9cdf00615","Linux 6.6"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:43.270","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90137","references":[{"url":"https://git.kernel.org/stable/c/59fe8491ddaa03a510b352552e6ee291e7ce45d3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8a7499b8fd34438c1b11964e0e7ef5bd590fec92","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ace1ba5fca0ab775b3641e154bcbc3ccde26a71a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c224759555a13735b0d67561d818cefe00c3309a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e213939ed9e6e6badf7aa48c4c8dd9a9cdf00615","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.0018,"epssPercentile":0.07822,"ingestedAt":"2026-09-17T16:21:47.879Z","slug":"CVE-2026-90137","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nplatform/x86: hp-bioscfg: fix password encoding bounds check\n\nThe password PSWD_ENCODINGS parser reads password_obj[elem + pos_values]\nwhile copying the supported password encodings from the ACPI package.\n\nThe outer loop only guarantees that elem is within password_obj_count.\nThe encoding count is bounded by MAX_ENCODINGS_SIZE, but that does not\nguarantee that the ACPI package contains enough entries for all\nelem + pos_values accesses.\n\nA malformed package can therefore declare a non-zero encoding count\nwithout providing enough string objects, causing the parser to read past\nthe ACPI package array and pass an out-of-bounds string pointer and\nlength to hp_convert_hexstr_to_str().\n\nAdd the same computed-index bounds check used by the other offset-based\npackage parsing loops before reading password_obj[elem + pos_values].\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":42,"depthScoreParts":{"impact":42.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207137,"id":"CVE-2026-90137","ts":1789757335093,"field":"cvss","old":null,"new":"7.7"},{"seq":207136,"id":"CVE-2026-90137","ts":1789757335093,"field":"severity","old":"none","new":"high"}]}