{"cve":"CVE-2019-16411","nvd":{"published":"2019-09-24T20:15:11.967","modified":"2026-06-17T02:22:15.717","status":"Modified","description":"An issue was discovered in Suricata 4.1.4. By sending multiple IPv4 packets that have invalid IPv4Options, the function IPV4OptValidateTimestamp in decode-ipv4.c tries to access a memory region that is not allocated. There is a check for o->len < 5 (corresponding to 2 bytes of header and 3 bytes of data). Then, \"flag = *(o->data + 3)\" places one beyond the 3 bytes, because the code should have been \"flag = *(o->data + 1)\" instead.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-125"],"references":["https://lists.openinfosecfoundation.org/pipermail/oisf-announce/","https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/","https://www.code-intelligence.com/cve-2019-16411","https://lists.openinfosecfoundation.org/pipermail/oisf-announce/","https://suricata-ids.org/2019/09/24/suricata-4-1-5-released/"],"products":["suricata-ids:suricata"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-16411","score":0.02027,"percentile":0.81017,"date":"2026-11-01"},"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."]}