{"cve":"CVE-2018-20450","nvd":{"published":"2018-12-25T17:29:00.250","modified":"2026-06-17T01:52:51.950","status":"Modified","description":"The read_MSAT function in ole.c in libxls 1.4.0 has a double free that allows attackers to cause a denial of service (application crash) via a crafted file, a different vulnerability than CVE-2017-2897.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":6.5},"cwes":["CWE-415"],"references":["https://github.com/evanmiller/libxls/issues/34","https://security.gentoo.org/glsa/202003-64","https://github.com/evanmiller/libxls/issues/34","https://security.gentoo.org/glsa/202003-64"],"products":["libxls_project:libxls"],"source":"nvd","synced_at":"2026-10-19T20:54:36.112582389+00:00"},"epss":{"cve":"CVE-2018-20450","score":0.01064,"percentile":0.64692,"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."]}