{"cve":"CVE-2025-40198","nvd":{"published":"2025-11-12T22:15:46.923","modified":"2026-10-19T21:10:00.160","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: avoid potential buffer over-read in parse_apply_sb_mount_options()\n\nUnlike other strings in the ext4 superblock, we rely on tune2fs to\nmake sure s_mount_opts is NUL terminated.  Harden\nparse_apply_sb_mount_options() by treating s_mount_opts as a potential\n__nonstring.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8},"cwes":[],"references":["https://git.kernel.org/stable/c/01829af7656b56d83682b3491265d583d502e502","https://git.kernel.org/stable/c/2a0cf438320cdb783e0378570744c0ef0d83e934","https://git.kernel.org/stable/c/7bf46ff83a0ef11836e38ebd72cdc5107209342d","https://git.kernel.org/stable/c/8ecb790ea8c3fc69e77bace57f14cf0d7c177bd8","https://git.kernel.org/stable/c/a6e94557cd05adc82fae0400f6e17745563e5412"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-40198","score":0.00164,"percentile":0.05581,"date":"2026-10-25"},"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."]}