How severe is CVE-2014-3569?

CVE-2014-3569 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2014-3569 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3569?

CVE-2014-3569 affects Openssl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2014-3569?

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

When was CVE-2014-3569 published?

CVE-2014-3569 was published on 2014-12-24 and last updated on 2026-06-17.

CVE-2014-3569

CVE-2014-3569 is a medium-severity vulnerability in Openssl with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 21% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 21% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Openssl
Published: 2014-12-24
Last modified: 2026-06-17

Description

The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 0.9.8zc, 1.0.0o, and 1.0.1j does not properly handle attempts to use unsupported protocols, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an unexpected handshake, as demonstrated by an SSLv3 handshake to a no-ssl3 application with certain error handling. NOTE: this issue became relevant after the CVE-2014-3568 fix.

Frequently asked questions

What is CVE-2014-3569?: The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 0.9.8zc, 1.0.0o, and 1.0.1j does not properly handle attempts to use unsupported protocols, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via an unexpected handshake, as demonstrated by an SSLv3 handshake to a no-ssl3 application with certain error handling. NOTE: this issue became relevant after the CVE-2014-3568 fix.
How severe is CVE-2014-3569?: CVE-2014-3569 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2014-3569 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 21% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3569?: CVE-2014-3569 affects Openssl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2014-3569?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3569 published?: CVE-2014-3569 was published on 2014-12-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:openssl:openssl:1.0.1j:*:*:*:*:*:*:*

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