{"cve":"CVE-2011-3389","nvd":{"published":"2011-09-06T19:55:03.197","modified":"2026-10-09T20:17:02.843","status":"Modified","description":"The SSL protocol, as used in certain configurations in Microsoft Windows and Microsoft Internet Explorer, Mozilla Firefox, Google Chrome, Opera, and other products, encrypts data by using CBC mode with chained initialization vectors, which allows man-in-the-middle attackers to obtain plaintext HTTP headers via a blockwise chosen-boundary attack (BCBA) on an HTTPS session, in conjunction with JavaScript code that uses (1) the HTML5 WebSocket API, (2) the Java URLConnection API, or (3) the Silverlight WebClient API, aka a \"BEAST\" attack.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-326"],"references":["http://blog.mozilla.com/security/2011/09/27/attack-against-tls-protected-communications/","http://blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-releases-security-advisory-2588513.aspx","http://blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-more-about-security-advisory-2588513.aspx","http://curl.haxx.se/docs/adv_20120124B.html","http://downloads.asterisk.org/pub/security/AST-2016-001.html"],"products":["canonical:ubuntu_linux","debian:debian_linux","google:chrome","haxx:curl","microsoft:internet_explorer","microsoft:windows","mozilla:firefox","opera:opera_browser","redhat:enterprise_linux_desktop","redhat:enterprise_linux_eus","redhat:enterprise_linux_server","redhat:enterprise_linux_server_aus","redhat:enterprise_linux_workstation","siemens:simatic_rf615r_firmware","siemens:simatic_rf68xr_firmware"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-3389","score":0.73327,"percentile":0.99457,"date":"2026-10-25"},"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."]}