CVE-2014-3470

MEDIUMEPSS 100th pctl

4.3

CVSS v2

Description

The ssl3_send_client_key_exchange function in s3_clnt.c in OpenSSL before 0.9.8za, 1.0.0 before 1.0.0m, and 1.0.1 before 1.0.1h, when an anonymous ECDH cipher suite is used, allows remote attackers to cause a denial of service (NULL pointer dereference and client crash) by triggering a NULL certificate value.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

opensslDebian

Fixed in:1.0.1h-1CVE-2014-3470

libssl1.0.0Ubuntu

Fixed in:1.0.1f-1ubuntu2.2USN-2232-1

opensslUbuntu

Fixed in:1.0.1f-1ubuntu2.2USN-2232-1

MariaDBWindows application

Affected:10.0.0 10.0.13Fixed in:10.0.13MariaDB Corporation Ab

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

85.78%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	93%	-	Fix
CVE-2023-21547	High	7.5	89%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	Fix
CVE-2006-6565	Medium	4.0	72%	-	Fix

Common questions

How do I fix CVE-2014-3470?

Published advisories record a fix for 4 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2014-3470 being actively exploited?

Not that we know of. CVE-2014-3470 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 85.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 100% of all scored CVEs.

How severe is CVE-2014-3470?

CVE-2014-3470 has a CVSS v2 base score of 4.3, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2014-3470 affect?

Published advisories record a fix for openssl (Debian), libssl1.0.0 (Ubuntu), openssl (Ubuntu), MariaDB (Windows application). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.