{"cve":"CVE-2023-53569","nvd":{"published":"2025-10-04T16:15:52.460","modified":"2026-06-17T06:45:37.567","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next2: Check block size validity during mount\n\nCheck that log of block size stored in the superblock has sensible\nvalue. Otherwise the shift computing the block size can overflow leading\nto undefined behavior.","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":[],"references":["https://git.kernel.org/stable/c/0ebfaf14150f55550cffb1148ed3920143c7a69c","https://git.kernel.org/stable/c/22ab5fed07ad4b206ea910fd0132d1a0d4831584","https://git.kernel.org/stable/c/451b98155be5dfee05bc6e7c8b30c0be4add3f71","https://git.kernel.org/stable/c/62aeb94433fcec80241754b70d0d1836d5926b0a","https://git.kernel.org/stable/c/99f8a15af6c9f0653193104a9e70891f950c6001"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2023-53569","score":0.00158,"percentile":0.0493,"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."]}