{"cve":"CVE-2025-21773","nvd":{"published":"2025-02-27T03:15:17.970","modified":"2026-06-17T08:44:14.660","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncan: etas_es58x: fix potential NULL pointer dereference on udev->serial\n\nThe driver assumed that es58x_dev->udev->serial could never be NULL.\nWhile this is true on commercially available devices, an attacker\ncould spoof the device identity providing a NULL USB serial number.\nThat would trigger a NULL pointer dereference.\n\nAdd a check on es58x_dev->udev->serial before accessing it.","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/1590667a60753ee5a54871f2840ceefd4a7831fa","https://git.kernel.org/stable/c/5059ea98d7bc133903d3e47ab36df6ed11d0c95f","https://git.kernel.org/stable/c/722e8e1219c8b6ac2865011fe339315d6a8d0721","https://git.kernel.org/stable/c/a1ad2109ce41c9e3912dadd07ad8a9c640064ffb"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2025-21773","score":0.00221,"percentile":0.12679,"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."]}