{"cve":"CVE-2023-53049","nvd":{"published":"2025-05-02T16:15:23.990","modified":"2026-06-17T06:44:11.897","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ucsi: Fix NULL pointer deref in ucsi_connector_change()\n\nWhen ucsi_init() fails, ucsi->connector is NULL, yet in case of\nucsi_acpi we may still get events which cause the ucs_acpi code to call\nucsi_connector_change(), which then derefs the NULL ucsi->connector\npointer.\n\nFix this by not setting ucsi->ntfy inside ucsi_init() until ucsi_init()\nhas succeeded, so that ucsi_connector_change() ignores the events\nbecause UCSI_ENABLE_NTFY_CONNECTOR_CHANGE is not set in the ntfy mask.","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/1c5abcb13491da8c049f20462189c12c753ba978","https://git.kernel.org/stable/c/7dd27aed9c456670b3882877ef17a48195f21693","https://git.kernel.org/stable/c/7ef0423e43f877a328454059d46763043ce3da44","https://git.kernel.org/stable/c/a6adfe9bbd6ac11e398b54ccd99a0f8eea09f3c0","https://git.kernel.org/stable/c/f87fb985452ab2083967103ac00bfd68fb182764"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:01:22.920403922+00:00"},"epss":{"cve":"CVE-2023-53049","score":0.00202,"percentile":0.10102,"date":"2026-11-01"},"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."]}