{"cve":"CVE-2016-1521","nvd":{"published":"2016-02-13T02:59:06.883","modified":"2026-06-17T00:42:06.750","status":"Modified","description":"The directrun function in directmachine.cpp in Libgraphite in Graphite 2 1.2.4, as used in Mozilla Firefox before 43.0 and Firefox ESR 38.x before 38.6.1, does not validate a certain skip operation, which allows remote attackers to execute arbitrary code, obtain sensitive information, or cause a denial of service (out-of-bounds read and application crash) via a crafted Graphite smart font.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-119"],"references":["http://blog.talosintel.com/2016/02/vulnerability-spotlight-libgraphite.html","http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177520.html","http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184623.html","http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00052.html","http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00058.html"],"products":["debian:debian_linux","fedoraproject:fedora","mozilla:firefox","mozilla:thunderbird","sil:graphite2"],"source":"nvd","synced_at":"2026-10-19T20:37:48.328043465+00:00"},"epss":{"cve":"CVE-2016-1521","score":0.04065,"percentile":0.90669,"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."]}