{"id":"CVE-2010-1766","aliases":["EUVD-2010-1786","GHSA-6mww-pvfg-4qx6"],"status":"published","title":"Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets...","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.","severity":{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02252,"percentile":0.83034,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-189"],"published":"2010-07-22T01:00:00Z","modified":"2026-06-16T23:19:16Z","products":[{"vendor":"digia","product":"qt"},{"vendor":"webkit","product":"webkit"}],"references":[{"url":"http://www.mandriva.com/security/advisories?name=MDVSA-2011:039","tags":["vendor-advisory","x_refsource_MANDRIVA","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2010/2722","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044031.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://secunia.com/advisories/43068","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2010/1801","tags":["vdb-entry","x_refsource_VUPEN","x_transferred","Vendor Advisory"]},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=596494","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.ubuntu.com/usn/USN-1006-1","tags":["vendor-advisory","x_refsource_UBUNTU","x_transferred"]},{"url":"http://secunia.com/advisories/41856","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://www.vupen.com/english/advisories/2011/0212","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"https://bugs.webkit.org/show_bug.cgi?id=36339","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://secunia.com/advisories/40557","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred","Vendor Advisory"]},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00006.html","tags":["vendor-advisory","x_refsource_SUSE","x_transferred"]},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-July/044023.html","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://www.vupen.com/english/advisories/2011/0552","tags":["vdb-entry","x_refsource_VUPEN","x_transferred"]},{"url":"http://trac.webkit.org/changeset/56380","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2010-1766"},{"url":"https://github.com/advisories/GHSA-6mww-pvfg-4qx6"}],"sources":{"cve":[{"id":"CVE-2010-1766","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.","status":"published","published":"2010-07-22T01:00:00Z","modified":"2024-08-07T01:35:53.654Z","updated_at":"2026-11-02T14:33:29.227451Z"}],"euvd":[{"id":"EUVD-2010-1786","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.","status":"published","published":"2010-07-22T01:00:00Z","modified":"2024-08-07T01:35:53Z","updated_at":"2026-11-03T01:39:40.343238Z"}],"ghsa":[{"id":"GHSA-6mww-pvfg-4qx6","title":"Off-by-one error in the WebSocketHandshake::readServerHandshake function in websockets...","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.","status":"published","published":"2022-05-17T05:15:19Z","modified":"2023-01-28T05:03:26Z","updated_at":"2026-11-02T14:43:58.944932Z"}],"nvd":[{"id":"CVE-2010-1766","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.","status":"published","published":"2010-07-22T05:42:55.877Z","modified":"2026-06-16T23:19:16.817Z","cvss":[{"version":"2.0","score":7.5,"vector":"AV:N/AC:L/Au:N/C:P/I:P/A:P","level":"high","assessor":"primary"}],"cwes":["CWE-189"],"updated_at":"2026-11-02T14:01:49.736647Z"}]}}