--- title: "CVE-2014-3566: Generation of Predictable IV with CBC Mode | CubePath" description: "The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which makes it easier…" language: en source: https://cubepath.com/security/cve/CVE-2014-3566 --- # CVE-2014-3566: Generation of Predictable IV with CBC Mode | CubePath ## Description The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, aka the "POODLE" issue. Official description from the CVE record, published by redhat. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2014-3566) ## Key data ### CVSS 3.1 Low 3.4 Score published by CISA-ADP in the CVE record. CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N | Metric | Value | What it means | | ---------------------- | -------- | ----------------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | High | The attack depends on conditions outside the attacker's control, so it takes preparation. | | Privileges required | None | No account or privileges are needed. | | User interaction | Required | A user has to do something first, such as opening a file or following a link. | | Scope | Changed | The impact can reach other components beyond the vulnerable one. | | Confidentiality impact | Low | Limited effect on the secrecy of data. | | Integrity impact | None | No effect on the trustworthiness of data. | | Availability impact | None | No effect on availability. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.99999 (99.99% probability) Percentile 99.99% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of May 28, 2026 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Automatable no Technical impact partial ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-329](https://cwe.mitre.org/data/definitions/329.html) Generation of Predictable IV with CBC Mode ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [HPSBOV03227](http://marc.info/?l=bugtraq&m=142103967620673&w=2) (marc.info) vendor-advisory - [aix.software.ibm.com/aix/efixes/security/openssl\_advisory11…](http://aix.software.ibm.com/aix/efixes/security/openssl%5Fadvisory11.asc) - [1031090](http://www.securitytracker.com/id/1031090) (securitytracker.com) vdb-entry - [blog.nodejs.org/2014/10/23/node-v0-10-33-stable](http://blog.nodejs.org/2014/10/23/node-v0-10-33-stable/) - [RHSA-2014:1880](http://rhn.redhat.com/errata/RHSA-2014-1880.html) (rhn.redhat.com) vendor-advisory - [HPSBHF03300](http://marc.info/?l=bugtraq&m=142804214608580&w=2) (marc.info) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c04819635) - [VU#577193](http://www.kb.cert.org/vuls/id/577193) (kb.cert.org) third-party-advisory - [HPSBMU03184](http://marc.info/?l=bugtraq&m=141577087123040&w=2) (marc.info) vendor-advisory - [HPSBGN03209](http://marc.info/?l=bugtraq&m=141715130023061&w=2) (marc.info) vendor-advisory - [openSUSE-SU-2014:1331](http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00008.html) (lists.opensuse.org) vendor-advisory - [support.apple.com/kb/HT6542](https://support.apple.com/kb/HT6542) - [1031106](http://www.securitytracker.com/id/1031106) (securitytracker.com) vdb-entry - [HPSBGN03201](http://marc.info/?l=bugtraq&m=141697638231025&w=2) (marc.info) vendor-advisory - [oracle.com/technetwork/topics/security/cpujul2015-2367936.h…](http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html) - [\[openssl-dev\] 20141014 Patch to mitigate CVE-2014-3566 ("POODLE")](http://marc.info/?l=openssl-dev&m=141333049205629&w=2) (marc.info) mailing-list - [SSRT101898](http://marc.info/?l=bugtraq&m=142350298616097&w=2) (marc.info) vendor-advisory - [SSRT101896](http://marc.info/?l=bugtraq&m=142350743917559&w=2) (marc.info) vendor-advisory - [60056](http://secunia.com/advisories/60056) (secunia.com) third-party-advisory - [RHSA-2014:1877](http://rhn.redhat.com/errata/RHSA-2014-1877.html) (rhn.redhat.com) vendor-advisory - [HPSBUX03162](http://marc.info/?l=bugtraq&m=141477196830952&w=2) (marc.info) vendor-advisory - [61130](http://secunia.com/advisories/61130) (secunia.com) third-party-advisory - [RHSA-2015:1546](http://rhn.redhat.com/errata/RHSA-2015-1546.html) (rhn.redhat.com) vendor-advisory - [SUSE-SU-2015:0503](http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00018.html) (lists.opensuse.org) vendor-advisory - [support.apple.com/kb/HT6529](https://support.apple.com/kb/HT6529) - [openssl.org/news/secadv\_20141015.txt](https://www.openssl.org/news/secadv%5F20141015.txt) - [APPLE-SA-2014-10-16-3](http://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html) (archives.neohapsis.com) vendor-advisory - [websense.com/support/article/kbarticle/Vulnerabilities-reso…](http://www.websense.com/support/article/kbarticle/Vulnerabilities-resolved-in-TRITON-APX-Version-8-0) - [RHSA-2014:1920](http://rhn.redhat.com/errata/RHSA-2014-1920.html) (rhn.redhat.com) vendor-advisory - [1031087](http://www.securitytracker.com/id/1031087) (securitytracker.com) vdb-entry - [HPSBMU03234](http://marc.info/?l=bugtraq&m=143628269912142&w=2) (marc.info) vendor-advisory - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05157667) - [bto.bluecoat.com/security-advisory/sa83](https://bto.bluecoat.com/security-advisory/sa83) - [SSRT101849](http://marc.info/?l=bugtraq&m=141879378918327&w=2) (marc.info) vendor-advisory - [support.citrix.com/article/CTX200238](http://support.citrix.com/article/CTX200238) - [61359](http://secunia.com/advisories/61359) (secunia.com) third-party-advisory - [support.apple.com/kb/HT6541](https://support.apple.com/kb/HT6541) - [1031093](http://www.securitytracker.com/id/1031093) (securitytracker.com) vdb-entry - [1031132](http://www.securitytracker.com/id/1031132) (securitytracker.com) vdb-entry - [DSA-3144](http://www.debian.org/security/2015/dsa-3144) (debian.org) vendor-advisory - [SSRT101790](http://marc.info/?l=bugtraq&m=142721887231400&w=2) (marc.info) vendor-advisory - [DSA-3253](http://www.debian.org/security/2015/dsa-3253) (debian.org) vendor-advisory - [SSRT101846](http://marc.info/?l=bugtraq&m=142660345230545&w=2) (marc.info) vendor-advisory - [h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr\_na-c0…](http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr%5Fna-c04779034) - [suse.com/support/kb/doc.php?id=7015773](https://www.suse.com/support/kb/doc.php?id=7015773) - [APPLE-SA-2014-10-16-4](http://www.securityfocus.com/archive/1/533724/100/0/threaded) (securityfocus.com) vendor-advisory - [elastic.co/blog/logstash-1-4-3-released](https://www.elastic.co/blog/logstash-1-4-3-released) - [SSRT101854](http://marc.info/?l=bugtraq&m=142296755107581&w=2) (marc.info) vendor-advisory - [oracle.com/technetwork/security-advisory/cpujul2016-2881720…](http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html) - [googleonlinesecurity.blogspot.com/2014/10/this-poodle-bites…](http://googleonlinesecurity.blogspot.com/2014/10/this-poodle-bites-exploiting-ssl-30.html) - [h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?d…](https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr%5Fna-c05301946) - [HPSBST03195](http://marc.info/?l=bugtraq&m=142805027510172&w=2) (marc.info) vendor-advisory - [61827](http://secunia.com/advisories/61827) (secunia.com) third-party-advisory - [HPSBMU03152](http://marc.info/?l=bugtraq&m=141450452204552&w=2) (marc.info) vendor-advisory - [RHSA-2015:0079](http://rhn.redhat.com/errata/RHSA-2015-0079.html) (rhn.redhat.com) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21688283](http://www-01.ibm.com/support/docview.wss?uid=swg21688283) - [HPSBMU03304](http://marc.info/?l=bugtraq&m=142791032306609&w=2) (marc.info) vendor-advisory - [technet.microsoft.com/library/security/3009008.aspx](https://technet.microsoft.com/library/security/3009008.aspx) - [RHSA-2015:1545](http://rhn.redhat.com/errata/RHSA-2015-1545.html) (rhn.redhat.com) vendor-advisory - [www-01.ibm.com/support/docview.wss?uid=swg21688165](https://www-01.ibm.com/support/docview.wss?uid=swg21688165) - [HPSBMU03259](http://marc.info/?l=bugtraq&m=142624619906067&w=2) (marc.info) vendor-advisory - [1031094](http://www.securitytracker.com/id/1031094) (securitytracker.com) vdb-entry - [vmware.com/security/advisories/VMSA-2015-0003.html](http://www.vmware.com/security/advisories/VMSA-2015-0003.html) - [61316](http://secunia.com/advisories/61316) (secunia.com) third-party-advisory - [GLSA-201606-11](https://security.gentoo.org/glsa/201606-11) (security.gentoo.org) vendor-advisory - [RHSA-2014:1881](http://rhn.redhat.com/errata/RHSA-2014-1881.html) (rhn.redhat.com) vendor-advisory - [imperialviolet.org/2014/10/14/poodle.html](https://www.imperialviolet.org/2014/10/14/poodle.html) - [1031096](http://www.securitytracker.com/id/1031096) (securitytracker.com) vdb-entry - [61810](http://secunia.com/advisories/61810) (secunia.com) third-party-advisory - [DSA-3053](http://www.debian.org/security/2014/dsa-3053) (debian.org) vendor-advisory - [support.lenovo.com/us/en/product\_security/poodle](https://support.lenovo.com/us/en/product%5Fsecurity/poodle) - [1031107](http://www.securitytracker.com/id/1031107) (securitytracker.com) vdb-entry - [1031095](http://www.securitytracker.com/id/1031095) (securitytracker.com) vdb-entry - [HPSBMU03223](http://marc.info/?l=bugtraq&m=143290583027876&w=2) (marc.info) vendor-advisory - [SUSE-SU-2014:1549](http://lists.opensuse.org/opensuse-security-announce/2014-12/msg00002.html) (lists.opensuse.org) vendor-advisory - [HPSBGN03305](http://marc.info/?l=bugtraq&m=142962817202793&w=2) (marc.info) vendor-advisory - [HPSBUX03194](http://marc.info/?l=bugtraq&m=143101048219218&w=2) (marc.info) vendor-advisory - [SSRT101868](http://marc.info/?l=bugtraq&m=142118135300698&w=2) (marc.info) vendor-advisory - [1031091](http://www.securitytracker.com/id/1031091) (securitytracker.com) vdb-entry - [HPSBMU03260](http://marc.info/?l=bugtraq&m=142495837901899&w=2) (marc.info) vendor-advisory - [1031123](http://www.securitytracker.com/id/1031123) (securitytracker.com) vdb-entry - [askubuntu.com/questions/537196/how-do-i-patch-workaround-ss…](http://askubuntu.com/questions/537196/how-do-i-patch-workaround-sslv3-poodle-vulnerability-cve-2014-3566) - [support.apple.com/HT205217](https://support.apple.com/HT205217) - [1031092](http://www.securitytracker.com/id/1031092) (securitytracker.com) vdb-entry - [oracle.com/technetwork/topics/security/bulletinjul2015-2511…](http://www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html) - [SUSE-SU-2015:0376](http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00033.html) (lists.opensuse.org) vendor-advisory - [61926](http://secunia.com/advisories/61926) (secunia.com) third-party-advisory - [RHSA-2014:1876](http://rhn.redhat.com/errata/RHSA-2014-1876.html) (rhn.redhat.com) vendor-advisory - [people.canonical.com/\~ubuntu-security/cve/2014/CVE-2014-356…](http://people.canonical.com/~ubuntu-security/cve/2014/CVE-2014-3566.html) - [HPSBHF03156](http://marc.info/?l=bugtraq&m=141450973807288&w=2) (marc.info) vendor-advisory - [openSUSE-SU-2016:0640](http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html) (lists.opensuse.org) vendor-advisory - [docs.ipswitch.com/MOVEit/DMZ82/ReleaseNotes/MOVEitReleaseNo…](http://docs.ipswitch.com/MOVEit/DMZ82/ReleaseNotes/MOVEitReleaseNotes82.pdf) - [oracle.com/technetwork/topics/security/cpujan2015-1972971.h…](http://www.oracle.com/technetwork/topics/security/cpujan2015-1972971.html) - [SSRT101838](http://marc.info/?l=bugtraq&m=141814011518700&w=2) (marc.info) vendor-advisory - [HPSBGN03569](http://marc.info/?l=bugtraq&m=145983526810210&w=2) (marc.info) vendor-advisory - [APPLE-SA-2015-09-16-2](http://lists.apple.com/archives/security-announce/2015/Sep/msg00002.html) (lists.apple.com) vendor-advisory - [bugzilla.mozilla.org/show\_bug.cgi?id=1076983](https://bugzilla.mozilla.org/show%5Fbug.cgi?id=1076983) - [support.apple.com/kb/HT6531](https://support.apple.com/kb/HT6531) - [SUSE-SU-2014:1357](http://lists.opensuse.org/opensuse-security-announce/2014-11/msg00001.html) (lists.opensuse.org) vendor-advisory - [devcentral.f5.com/articles/cve-2014-3566-removing-sslv3-fro…](https://devcentral.f5.com/articles/cve-2014-3566-removing-sslv3-from-big-ip) and 143 more in the [record on cve.org](https://www.cve.org/CVERecord?id=CVE-2014-3566) ## Timeline 1. ID reserved May 14, 2014 2. Record published Oct 15, 2014 3. Record last updated May 28, 2026 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) 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, 19:59 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)