{"cve":"CVE-2019-16239","nvd":{"published":"2019-09-17T12:15:10.560","modified":"2026-06-17T02:21:58.297","status":"Modified","description":"process_http_response in OpenConnect before 8.05 has a Buffer Overflow when a malicious server uses HTTP chunked encoding with crafted chunk sizes.","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-120"],"references":["http://lists.infradead.org/pipermail/openconnect-devel/2019-September/005412.html","http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00060.html","http://lists.opensuse.org/opensuse-security-announce/2019-10/msg00061.html","https://lists.debian.org/debian-lts-announce/2019/10/msg00003.html","https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX56KYWC7X4ETV4P6HGJC7GZUEBITBBS/"],"products":["canonical:ubuntu_linux","debian:debian_linux","fedoraproject:fedora","infradead:openconnect","opensuse:leap"],"source":"nvd","synced_at":"2026-10-19T20:58:39.700375520+00:00"},"epss":{"cve":"CVE-2019-16239","score":0.03445,"percentile":0.89001,"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."]}