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.
CVE-2014-3566
Score elevated to 9.0 because EPSS predicts 94% probability of exploitation within the next 30 days (top 0.1% of all CVEs). NVD baseline CVSS 3.4 retained for reference. Confidence: see factors.
- High exploitation likelihood — EPSS 100%
A fix is available — apply it.
- CVSS v3
- 3.4
- EG Score
- 9.0(high)
- EPSS
- 100.0%
- KEV
- Not listed
Published
October 15, 2014
Last Modified
May 28, 2026
References (487)
- secalert@redhatftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2014-015.txt.asc
- secalert@redhathttp://advisories.mageia.org/MGASA-2014-0416.html
- secalert@redhathttp://aix.software.ibm.com/aix/efixes/security/openssl_advisory11.asc
- secalert@redhathttp://archives.neohapsis.com/archives/bugtraq/2014-10/0101.html
- secalert@redhathttp://archives.neohapsis.com/archives/bugtraq/2014-10/0103.html
- secalert@redhathttp://askubuntu.com/questions/537196/how-do-i-patch-workaround-sslv3-poodle-vulnerability-cve-2014-3566
- secalert@redhathttp://blog.cryptographyengineering.com/2014/10/attack-of-week-poodle.html
- secalert@redhathttp://blog.nodejs.org/2014/10/23/node-v0-10-33-stable/
- secalert@redhathttp://blogs.technet.com/b/msrc/archive/2014/10/14/security-advisory-3009008-released.aspx
- secalert@redhathttp://docs.ipswitch.com/MOVEit/DMZ82/ReleaseNotes/MOVEitReleaseNotes82.pdf
- secalert@redhathttp://downloads.asterisk.org/pub/security/AST-2014-011.html
- secalert@redhathttp://googleonlinesecurity.blogspot.com/2014/10/this-poodle-bites-exploiting-ssl-30.html
- secalert@redhathttp://h20564.www2.hp.com/hpsc/doc/public/display?docId=emr_na-c04583581
- secalert@redhathttp://h20564.www2.hpe.com/hpsc/doc/public/display?docId=emr_na-c04779034
- secalert@redhathttp://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
Vendor Advisories for CVE-2014-3566(14)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHBA-2015:0364Red Hat Product SecurityHigh
Red Hat Bug Fix Advisory: nss, nss-softokn, nss-util, and nspr bug fix and enhancement update
- RHSA-2015:0264Red Hat Product SecurityLow
Red Hat Security Advisory: Red Hat Satellite IBM Java Runtime security update
- RHSA-2015:0085Red Hat Product SecurityHigh
Red Hat Security Advisory: java-1.6.0-openjdk security update
- RHSA-2015:0086Red Hat Product SecurityHigh
Red Hat Security Advisory: java-1.6.0-sun security update
- RHSA-2015:0079Red Hat Product SecurityCritical
Red Hat Security Advisory: java-1.7.0-oracle security update
- RHSA-2015:0080Red Hat Product SecurityCritical
Red Hat Security Advisory: java-1.8.0-oracle security update
- RHSA-2015:0067Red Hat Product SecurityCritical
Red Hat Security Advisory: java-1.7.0-openjdk security update
- RHSA-2015:0069Red Hat Product SecurityHigh
Red Hat Security Advisory: java-1.8.0-openjdk security update
- +6 more
Patch Availability(22)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(9)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Red HatRHBA-2014:1857IMPORTANT2014-10-14
RHBA-2014:1857 — Important
- Red HatRHSA-2014:1920IMPORTANT2014-10-14
RHSA-2014:1920 — Important
- Red HatRHSA-2015:0010IMPORTANT2014-10-14
RHSA-2015:0010 — Important
- Red HatRHSA-2015:0011IMPORTANT2014-10-14
RHSA-2015:0011 — Important
- Red HatRHSA-2015:0012IMPORTANT2014-10-14
RHSA-2015:0012 — Important
- Red HatRHSA-2015:1545IMPORTANT2014-10-14
RHSA-2015:1545 — Important
- Red HatRHSA-2015:1546IMPORTANT2014-10-14
RHSA-2015:1546 — Important
- UbuntuUSN-2486-1MEDIUM
OpenJDK 6 vulnerabilities
- UbuntuUSN-2487-1MEDIUM
OpenJDK 7 vulnerabilities
Data Freshness Timeline
(refreshed 0× in last 7d / 4× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-04 20:26 UTCOSV refresh
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-23 21:30 UTCEPSS rescore
- 2026-06-16 08:09 UTCOSV refresh
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-08 14:14 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-06-05 06:08 UTCEPSS rescore
- 2026-05-29 13:41 UTCEPSS rescore
- 2026-05-28 16:11 UTCEG score recompute
- 2026-05-28 16:11 UTCVendor advisory
- 2026-05-28 16:11 UTCGHSA enrichment
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-19 14:03 UTCOSV refresh
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(3 references)Working exploit code is in the public domain (1 Metasploit module) (2 GitHub PoCs). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCmpgn/poodle-PoCFirst seen Feb 3, 2015
:poodle: Poodle (Padding Oracle On Downgraded Legacy Encryption) attack CVE-2014-3566 :poodle:
Open source ↗ - Open source ↗GitHub PoCmikesplain/CVE-2014-3566-poodle-cookbookFirst seen Oct 16, 2014
- Metasploitauxiliary/scanner/ssl/ssl_version✓ verifiedFirst seen Oct 14, 2014
SSL/TLS Version Detection
Open source ↗
Related CVEs(same vendor + same CWE)
Same vendor
10 shownredhat
Frequently asked(5)
What is CVE-2014-3566?
When was CVE-2014-3566 disclosed?
Is CVE-2014-3566 actively exploited?
What is the CVSS score of CVE-2014-3566?
How do I remediate CVE-2014-3566?
Dependency Blast Radius
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