{"cve":"CVE-2023-51714","nvd":{"published":"2023-12-24T21:15:25.470","modified":"2026-10-08T22:17:25.630","status":"Analyzed","description":"An issue was discovered in the HTTP2 implementation in Qt before 5.15.17, 6.x before 6.2.11, 6.3.x through 6.5.x before 6.5.4, and 6.6.x before 6.6.2. network/access/http2/hpacktable.cpp has an incorrect HPack integer overflow check.","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-190"],"references":["https://codereview.qt-project.org/c/qt/qtbase/+/524864","https://codereview.qt-project.org/c/qt/qtbase/+/524865/3","https://lists.debian.org/debian-lts-announce/2024/04/msg00027.html","https://codereview.qt-project.org/c/qt/qtbase/+/524864","https://codereview.qt-project.org/c/qt/qtbase/+/524865/3"],"products":["debian:debian_linux","qt:qt"],"source":"nvd","synced_at":"2026-10-19T21:43:38.875533635+00:00"},"epss":{"cve":"CVE-2023-51714","score":0.00978,"percentile":0.61925,"date":"2026-10-25"},"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."]}