{"cve":"CVE-2010-1766","nvd":{"published":"2010-07-22T05:42:55.877","modified":"2026-06-16T23:19:16.817","status":"Modified","description":"Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets/WebSocketHandshake.cpp in WebCore in WebKit before r56380, as used in Qt and other products, allows remote websockets servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via an upgrade header that is long and invalid.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-189"],"references":["http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044023.html","http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044031.html","http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html","http://secunia.com/advisories/40557","http://secunia.com/advisories/41856"],"products":["digia:qt","webkit:webkit"],"source":"nvd","synced_at":"2026-10-19T19:56:26.512081652+00:00"},"epss":{"cve":"CVE-2010-1766","score":0.02252,"percentile":0.82916,"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."]}