{"cve":"CVE-2025-40221","nvd":{"published":"2025-12-04T15:15:58.200","modified":"2026-10-19T19:10:00.130","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: pci: mg4b: fix uninitialized iio scan data\n\nFix potential leak of uninitialized stack data to userspace by ensuring\nthat the `scan` structure is zeroed before use.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/b792eba44494b4e6ab5006013335f9819f303b8b","https://git.kernel.org/stable/c/b7f82da7f86479cb6479a76ebe213ece7c77398f","https://git.kernel.org/stable/c/c0d3f6969bb4d72476cfe7ea9263831f1c283704"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:16:40.427100871+00:00"},"epss":{"cve":"CVE-2025-40221","score":0.00185,"percentile":0.08042,"date":"2026-10-25"},"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."]}