{"cve":"CVE-2021-47233","nvd":{"published":"2024-05-21T15:15:12.630","modified":"2026-06-17T04:16:58.200","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nregulator: rt4801: Fix NULL pointer dereference if priv->enable_gpios is NULL\n\ndevm_gpiod_get_array_optional may return NULL if no GPIO was assigned.","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-476"],"references":["https://git.kernel.org/stable/c/ba8a26a7ce8617f9f3d6230de34b2302df086b41","https://git.kernel.org/stable/c/cb2381cbecb81a8893b2d1e1af29bc2e5531df27","https://git.kernel.org/stable/c/dc68f0c9e4a001e02376fe87f4bdcacadb27e8a1","https://git.kernel.org/stable/c/ba8a26a7ce8617f9f3d6230de34b2302df086b41","https://git.kernel.org/stable/c/cb2381cbecb81a8893b2d1e1af29bc2e5531df27"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2021-47233","score":0.00222,"percentile":0.12787,"date":"2026-10-31"},"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."]}