{"cve":"CVE-2023-53506","nvd":{"published":"2025-10-01T12:15:54.320","modified":"2026-10-15T22:17:41.530","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nudf: Do not bother merging very long extents\n\nWhen merging very long extents we try to push as much length as possible\nto the first extent. However this is unnecessarily complicated and not\nreally worth the trouble. Furthermore there was a bug in the logic\nresulting in corrupting extents in the file as syzbot reproducer shows.\nSo just don't bother with the merging of extents that are too long\ntogether.","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/3d20e3b768aff32112bdce8d3219d923ae75f9f1","https://git.kernel.org/stable/c/53cafe1d6d8ef9f93318e5bfccc0d24f27d41ced","https://git.kernel.org/stable/c/5d029799d381a9ee06209a222cae75f04c5d5304","https://git.kernel.org/stable/c/7a965da79f2d22601f329cbfce588386b0847544","https://git.kernel.org/stable/c/965982feb333aefa9256c0fe188b5f1b958aef63"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:11:26.888974865+00:00"},"epss":{"cve":"CVE-2023-53506","score":0.00168,"percentile":0.0612,"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."]}