{"cve":"CVE-2026-63936","nvd":{"published":"2026-07-19T16:17:12.080","modified":"2026-10-30T14:28:11.323","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: adc: mt6359: fix unchecked return value in mt6358_read_imp\n\nIn mt6358_read_imp(), the variable val_v is passed to regmap_read()\nbut the return value is not checked. If the read fails, val_v remains\nuninitialized and its random stack content is subsequently reported\nas a measurement result.\n\nInitialize val_v to zero to ensure a predictable value is reported\nin case of bus failure and to prevent potential stack data leakage.\nThis also satisfies static analyzers that might otherwise flag the\nvariable as used uninitialized.","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-908"],"references":["https://git.kernel.org/stable/c/6258bfec51e894ea97b8e69f3cde7af269b37de9","https://git.kernel.org/stable/c/944082fdb0284a31c0b37a88c8a1d4404da3a6d9","https://git.kernel.org/stable/c/a72f8e51d6ee66c255a8a93a4421b8a538d112a8","https://git.kernel.org/stable/c/f9bbd943c34a9ad60e593a4b99ce2394e4e2381b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-30T14:49:48.263840089+00:00"},"epss":{"cve":"CVE-2026-63936","score":0.00209,"percentile":0.11103,"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."]}