{"cve":"CVE-2025-38484","nvd":{"published":"2025-07-28T12:15:30.367","modified":"2026-07-30T06:23:20.450","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\niio: backend: fix out-of-bound write\n\nThe buffer is set to 80 character. If a caller write more characters,\ncount is truncated to the max available space in \"simple_write_to_buffer\".\nBut afterwards a string terminator is written to the buffer at offset count\nwithout boundary check. The zero termination is written OUT-OF-BOUND.\n\nAdd a check that the given buffer is smaller then the buffer to prevent.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-787"],"references":["https://git.kernel.org/stable/c/01e941aa7f5175125df4ac5d3aab099961525602","https://git.kernel.org/stable/c/6eea9f7648ddb9e4903735a1f77cf196c957aa38","https://git.kernel.org/stable/c/da9374819eb3885636934c1006d450c3cb1a02ed"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:05:46.678065081+00:00"},"epss":{"cve":"CVE-2025-38484","score":0.00174,"percentile":0.06859,"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."]}