{"cve":"CVE-2016-6354","nvd":{"published":"2016-09-21T14:25:20.800","modified":"2026-06-17T00:50:52.897","status":"Modified","description":"Heap-based buffer overflow in the yy_get_next_buffer function in Flex before 2.6.1 might allow context-dependent attackers to cause a denial of service or possibly execute arbitrary code via vectors involving num_to_read.","cvss_v4":null,"cvss_v3":{"version":"3.0","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-119"],"references":["http://www.debian.org/security/2016/dsa-3653","http://www.openwall.com/lists/oss-security/2016/07/18/8","http://www.openwall.com/lists/oss-security/2016/07/26/12","https://github.com/westes/flex/commit/a5cbe929ac3255d371e698f62dc256afe7006466","https://security.gentoo.org/glsa/201701-31"],"products":["debian:debian_linux","westes:flex"],"source":"nvd","synced_at":"2026-10-19T20:40:10.783210791+00:00"},"epss":{"cve":"CVE-2016-6354","score":0.09117,"percentile":0.95309,"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."]}