CVE-2011-3389
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.
Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See /security/cve/legal for the CVE license. View the record on cve.org
Key data
EPSS
Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.
- Score
- 0.73327 (73.3% probability)
- Percentile
- 99.5%
- Scores of
- Nov 10, 2026
- Model
- v2026.06.15
CISA assessment as of Oct 9, 2026
Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA.
- Automatable
- no
- Technical impact
- partial
References
Links listed in the CVE record. They lead to other sites, which CubePath does not control.
- 74829 (osvdb.org)vdb-entry
- eprint.iacr.org/2004/111
- oracle.com/technetwork/topics/security/cpujul2015-2367936.h…
- isc.sans.edu/diary/SSL+TLS+part+3+/11635
- GLSA-201406-32 (security.gentoo.org)vendor-advisory
- 48692 (secunia.com)third-party-advisory
- HPSBMU02799 (marc.info)vendor-advisory
- apcmedia.com/salestools/SJHN-7RKGNM/SJHN-7RKGNM_R4_EN.pdf
- SSRT100805 (marc.info)vendor-advisory
- 55322 (secunia.com)third-party-advisory
- support.apple.com/kb/HT5130
- bugzilla.redhat.com/show_bug.cgi?id=737506
- HPSBUX02730 (marc.info)vendor-advisory
- SUSE-SU-2012:0602 (lists.opensuse.org)vendor-advisory
- 1025997 (securitytracker.com)vdb-entry
- TA12-010A (us-cert.gov)third-party-advisory
- APPLE-SA-2011-10-12-1 (lists.apple.com)vendor-advisory
- SUSE-SU-2012:0114 (lists.opensuse.org)vendor-advisory
- 49388 (securityfocus.com)vdb-entry
- ekoparty.org/2011/juliano-rizzo.php
- downloads.asterisk.org/pub/security/AST-2016-001.html
- blogs.oracle.com/sunsecurity/entry/multiple_vulnerabilities…
- RHSA-2013:1455 (rhn.redhat.com)vendor-advisory
- 55351 (secunia.com)third-party-advisory
- VU#864643 (kb.cert.org)third-party-advisory
- APPLE-SA-2013-10-22-3 (lists.apple.com)vendor-advisory
- oracle.com/technetwork/topics/security/cpujan2015-1972971.h…
- 49778 (securityfocus.com)vdb-entry
- DSA-2398 (debian.org)vendor-advisory
- 48948 (secunia.com)third-party-advisory
- support.apple.com/kb/HT6150
- APPLE-SA-2012-02-01-1 (lists.apple.com)vendor-advisory
- technet.microsoft.com/security/advisory/2588513
- openSUSE-SU-2012:0063 (hermes.opensuse.org)vendor-advisory
- blogs.technet.com/b/msrc/archive/2011/09/26/microsoft-relea…
- RHSA-2011:1384 (redhat.com)vendor-advisory
- blogs.technet.com/b/srd/archive/2011/09/26/is-ssl-broken-mo…
- opera.com/docs/changelogs/windows/1151
- openSUSE-SU-2012:0030 (hermes.opensuse.org)vendor-advisory
- eprint.iacr.org/2006/136
- 48915 (secunia.com)third-party-advisory
- GLSA-201203-02 (security.gentoo.org)vendor-advisory
- SSRT100740 (marc.info)vendor-advisory
- educatedguesswork.org/2011/09/security_impact_of_the_rizzod…
- 48256 (secunia.com)third-party-advisory
- APPLE-SA-2012-09-19-2 (lists.apple.com)vendor-advisory
- 1026103 (securitytracker.com)vdb-entry
- support.apple.com/kb/HT4999
- imperialviolet.org/2011/09/23/chromeandbeast.html
- support.apple.com/kb/HT5501
- insecure.cl/Beast-SSL.rar
- ics-cert.us-cert.gov/advisories/ICSMA-18-058-02
- support.apple.com/kb/HT5001
- opera.com/docs/changelogs/mac/1160
- curl.haxx.se/docs/adv_20120124B.html
- opera.com/support/kb/view/1004
- oracle.com/technetwork/topics/security/javacpuoct2011-44343…
- 1026704 (securitytracker.com)vdb-entry
- APPLE-SA-2012-07-25-2 (lists.apple.com)vendor-advisory
- my.opera.com/securitygroup/blog/2011/09/28/the-beast-ssl-tl…
- RHSA-2012:0508 (rhn.redhat.com)vendor-advisory
- 45791 (secunia.com)third-party-advisory
- 1029190 (securitytracker.com)vdb-entry
- MDVSA-2012:058 (mandriva.com)vendor-advisory
- 47998 (secunia.com)third-party-advisory
- SSRT100867 (marc.info)vendor-advisory
- 49198 (secunia.com)third-party-advisory
- RHSA-2012:0006 (redhat.com)vendor-advisory
- blog.mozilla.com/security/2011/09/27/attack-against-tls-pro…
- opera.com/docs/changelogs/windows/1160
- SUSE-SU-2012:0122 (lists.opensuse.org)vendor-advisory
- HPSBUX02777 (marc.info)vendor-advisory
- oval:org.mitre.oval:def:14752 (oval.cisecurity.org)vdb-entrysignature
- opera.com/docs/changelogs/unix/1151
- opera.com/docs/changelogs/mac/1151
- MS12-006 (docs.microsoft.com)vendor-advisory
- opera.com/docs/changelogs/unix/1160
- googlechromereleases.blogspot.com/2011/10/chrome-stable-rel…
- support.apple.com/kb/HT5281
- APPLE-SA-2011-10-12-2 (lists.apple.com)vendor-advisory
- bugzilla.novell.com/show_bug.cgi?id=719047
- HPSBMU02900 (h20564.www2.hp.com)vendor-advisory
- vnhacker.blogspot.com/2011/09/beast.html
- USN-1263-1 (ubuntu.com)vendor-advisory
- APPLE-SA-2012-05-09-1 (lists.apple.com)vendor-advisory
- 55350 (secunia.com)third-party-advisory
- ibm.com/developerworks/java/jdk/alerts
- cert-portal.siemens.com/productcert/pdf/ssa-556833.pdf
- openSUSE-SU-2020:0086 (lists.opensuse.org)vendor-advisory
Timeline
- ID reserved
- Record published
- Record last updated
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About CubePath
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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:45 UTC. Sources and licenses