{"id":"CVE-2011-4686","aliases":["EUVD-2011-4604","GHSA-4c95-569c-frhq"],"status":"published","title":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote...","description":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote attackers to cause a denial of service (application crash) via unknown vectors.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02196,"percentile":0.82604,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"published":"2011-12-07T19:00:00Z","modified":"2026-06-16T23:35:14Z","products":[{"vendor":"opera","product":"opera_browser"}],"references":[{"url":"http://www.opera.com/docs/changelogs/mac/1160/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.opera.com/docs/changelogs/windows/1160/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"http://www.opera.com/docs/changelogs/unix/1160/","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4686"},{"url":"http://www.opera.com/docs/changelogs/mac/1160"},{"url":"http://www.opera.com/docs/changelogs/unix/1160"},{"url":"http://www.opera.com/docs/changelogs/windows/1160"},{"url":"https://github.com/advisories/GHSA-4c95-569c-frhq"}],"sources":{"cve":[{"id":"CVE-2011-4686","description":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote attackers to cause a denial of service (application crash) via unknown vectors.","status":"published","published":"2011-12-07T19:00:00Z","modified":"2024-09-16T19:19:27.723Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-4604","description":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote attackers to cause a denial of service (application crash) via unknown vectors.","status":"published","published":"2011-12-07T19:00:00Z","modified":"2024-09-16T19:19:27Z","updated_at":"2026-11-03T00:55:24.213258Z"}],"ghsa":[{"id":"GHSA-4c95-569c-frhq","title":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote...","description":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote attackers to cause a denial of service (application crash) via unknown vectors.","status":"published","published":"2022-05-17T05:32:36Z","modified":"2025-04-11T03:54:20Z","updated_at":"2026-11-02T15:01:10.114294Z"}],"nvd":[{"id":"CVE-2011-4686","description":"Unspecified vulnerability in the Web Workers implementation in Opera before 11.60 allows remote attackers to cause a denial of service (application crash) via unknown vectors.","status":"published","published":"2011-12-07T19:55:02.707Z","modified":"2026-06-16T23:35:14.433Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:02:11.800512Z"}]}}