{"cve":"CVE-2025-21793","nvd":{"published":"2025-02-27T03:15:20.190","modified":"2026-06-17T08:44:17.627","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nspi: sn-f-ospi: Fix division by zero\n\nWhen there is no dummy cycle in the spi-nor commands, both dummy bus cycle\nbytes and width are zero. Because of the cpu's warning when divided by\nzero, the warning should be avoided. Return just zero to avoid such\ncalculations.","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-369"],"references":["https://git.kernel.org/stable/c/3588b1c0fde2f58d166e3f94a5a58d64b893526c","https://git.kernel.org/stable/c/4df6f005bef04a3dd16c028124a1b5684db3922b","https://git.kernel.org/stable/c/7434135553bc03809a55803ee6a8dcaae6240d55","https://git.kernel.org/stable/c/966328191b4c389c0f2159fa242915f51cbc1679"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:59:48.811064707+00:00"},"epss":{"cve":"CVE-2025-21793","score":0.00221,"percentile":0.1268,"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."]}