How severe is CVE-2014-3566?

CVE-2014-3566 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2014-3566 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 100% (100th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3566?

CVE-2014-3566 primarily affects Redhat Enterprise Linux. In total, 147 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3566?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-3566 published?

CVE-2014-3566 was published on 2014-10-15 and last updated on 2026-06-17.

CVE-2014-3566

CVE-2014-3566 is a low-severity vulnerability in Redhat Enterprise Linux with a CVSS 3.x base score of 3.4. Its EPSS exploit-prediction score of 100% places it in the 100th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-310.

Key facts

Severity: Low (CVSS 3.x base score 3.4)
CVSS v2: 4.3
EPSS exploit prediction: 100% (100th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-310
Affected product: Redhat Enterprise Linux
Published: 2014-10-15
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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 padding-oracle attack, aka the "POODLE" issue.
How severe is CVE-2014-3566?: CVE-2014-3566 has a CVSS 3.x base score of 3.4, rated low severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2014-3566 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 100% (100th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3566?: CVE-2014-3566 primarily affects Redhat Enterprise Linux. In total, 147 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3566?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3566 published?: CVE-2014-3566 was published on 2014-10-15 and last updated on 2026-06-17.

References

Affected products (147)

cpe:2.3:o:redhat:enterprise_linux:5:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop_supplementary:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop_supplementary:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_supplementary:5.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_supplementary:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_supplementary:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation_supplementary:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation_supplementary:7.0:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:5.3:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:6.1:*:*:*:*:*:*:*
cpe:2.3:o:ibm:aix:7.1:*:*:*:*:*:*:*
cpe:2.3:o:apple:mac_os_x:*:*:*:*:*:*:*:*
cpe:2.3:o:mageia:mageia:3.0:*:*:*:*:*:*:*
cpe:2.3:o:mageia:mageia:4.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:9.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:10.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:11.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_desktop:12.0:*:*:*:*:*:*:*
cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:11.0:sp3:*:*:*:*:*:*
cpe:2.3:a:novell:suse_linux_enterprise_software_development_kit:12.0:*:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:*:*:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:11.0:sp3:*:*:*:vmware:*:*
cpe:2.3:o:novell:suse_linux_enterprise_server:12.0:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:12.3:*:*:*:*:*:*:*
cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:19:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8a:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8b:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8c:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8d:*:*:*:*:*:*:*
cpe:2.3:a:openssl:openssl:0.9.8e:*:*:*:*:*:*:*

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Other CWE-310 (Cryptographic Issues) vulnerabilities

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Threat intelligence

Threat-intel indicators referencing this CVE:

218.4.91.163 (ipv4-addr)
200.77.172.159 (ipv4-addr)
200.196.50.91 (ipv4-addr)
166.62.41.190 (ipv4-addr)
50.62.22.47 (ipv4-addr)
222.99.52.202 (ipv4-addr)
191.101.33.225 (ipv4-addr)
121.164.135.251 (ipv4-addr)