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-in-the-middle attackers to obtain cleartext data via a p...

Public exploit available. Not confirmed exploited in the wild yet. A vendor fix is available.

CVSS 3.13.4Low EPSS percentile99th100% chance in 30 days CISA KEVNot listedNo confirmed exploitation
Public exploit: 1 source FixVendor fixNo build named by the sources

Published 2014-10-15Updated 2026-05-28Sources: CVE.org, NVD, BDU, CSAF

NVD CVE.org

What to do

The vendor has published a fix. Version details are below where the sources state them.

Check it yourselfA free OpenVAS check exists for this CVE. Run it against your hosts.Is your organisation exposed?Request an assessment to establish which checks fit your systems.

What it is

From the CVE record

This CSAF advisory was extracted from unstructured data and may contain inaccuracies. If you notice any errors, please reach out to the designated contact at CISA CSAF: central@cisa.dhs.gov

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS99th

Public exploit

CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

1 source with a proof of concept or module.

Exploit links, PoCs and Metasploit modules after sign-in

EPSS

100% chance of exploitation activity in the next 30 days, which ranks it in the 99th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

A public exploit existed 83 days before the patch.

2026-06-25OpenVAS check added
2026-05-28Patch availablerecord updated
2026-03-06Public exploit / PoCsource: github-poc
2014-10-15Publishedweakness classified

Affected products

redhatcommercial · USaka red hat
novellcommercial · USaka suse novell, novell suse
ibmcommercial · USaka international business machines
- aixOSOperating Systems / unix-bsd
- viosOn-premEnterprise Software / itsm-monitoring
OpenSSL Software Foundationoss-project · USaka openssl.org, openssl foundation
- OpenSSLLibraryLibraryOSS Libraries / generic-library
applecommercial · USaka apple inc., apple computer
- mac os xOSOn-premOperating Systems / unix-bsd
mageiaoss-projectaka mageia linux
- mageiaOn-premOperating Systems / linux-distro

And 10 more affected products. See all after sign-in

Technical detail

CVSS 3.1 vector

Open in the CVSS calculator

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:N/A:N

Scored 3.4 by NVD.

How it is reached

Attack Vector NetworkExploitable remotely over the network without any special conditions
Attack Complexity HighRequires specific conditions like a race condition or non-default configuration
Privileges Required NoneNo authentication required — anyone can exploit this
User Interaction RequiredA user must click a link, open a file, or perform some action

Scope

Scope ChangedThe exploit can affect other components (e.g. sandbox escape, host compromise from VM)

Impact if exploited

Confidentiality LowSome restricted information is disclosed, but limited in scope
Integrity NoneNo integrity impact
Availability NoneNo availability impact

Weaknesses

Sources

References in the record

And 302 more references. See all after sign-in

In the news

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