{"cve":"CVE-2019-18281","nvd":{"published":"2019-10-23T15:15:14.343","modified":"2026-06-17T02:24:45.027","status":"Modified","description":"An out-of-bounds memory access in the generateDirectionalRuns() function in qtextengine.cpp in Qt qtbase 5.11.x and 5.12.x before 5.12.5 allows attackers to cause a denial of service by crashing an application via a text file containing many directional characters.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","score":4.3},"cwes":["CWE-119"],"references":["https://bugreports.qt.io/browse/QTBUG-77819","https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1848784","https://codereview.qt-project.org/c/qt/qtbase/+/271889","https://seclists.org/bugtraq/2019/Nov/4","https://security.gentoo.org/glsa/202003-60"],"products":["debian:debian_linux","qt:qtbase"],"source":"nvd","synced_at":"2026-10-19T20:59:10.855360465+00:00"},"epss":{"cve":"CVE-2019-18281","score":0.0205,"percentile":0.81234,"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."]}