{"cve":"CVE-2007-4137","nvd":{"published":"2007-09-18T19:17:00.000","modified":"2026-06-16T22:43:28.203","status":"Modified","description":"Off-by-one error in the QUtf8Decoder::toUnicode function in Trolltech Qt 3 allows context-dependent attackers to cause a denial of service (crash) via a crafted Unicode string that triggers a heap-based buffer overflow.  NOTE: Qt 4 has the same error in the QUtf8Codec::convertToUnicode function, but it is not exploitable.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"references":["ftp://patches.sgi.com/support/free/security/advisories/20070901-01-P.asc","http://bugs.gentoo.org/show_bug.cgi?id=192472","http://dist.trolltech.com/developer/download/175791_3.diff","http://dist.trolltech.com/developer/download/175791_4.diff","http://fedoranews.org/updates/FEDORA-2007-221.shtml"],"products":["trolltech:qt"],"source":"nvd","synced_at":"2026-10-19T19:48:28.501292361+00:00"},"epss":{"cve":"CVE-2007-4137","score":0.0234,"percentile":0.83617,"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."]}