CVE-2017-3730: OpenSSL

High severity, CVSS 7.5. EPSS: 55.3% chance of exploitation in the next 30 days.

In OpenSSL 1.1.0 before 1.1.0d, if a malicious server supplies bad parameters for a DHE or ECDHE key exchange then this can result in the client attempting to dereference a NULL pointer leading to a client crash. This could be exploited in a Denial of Service attack.

Affected products

• OpenSSL OpenSSL: version 1.1.0 only; version 1.1.0a only; version 1.1.0b only; version 1.1.0c only
• Oracle Agile Engineering Data Management: version 6.1.3 only; version 6.2.0 only
• Oracle Communications Application Session Controller: version 3.7.1 only; version 3.8.0 only
• Oracle Communications Eagle Lnp Application Processor: version 10.0 only; version 10.1 only; version 10.2 only
• Oracle Communications Operations Monitor: version 3.4 only; version 4.0 only
• Oracle Jd Edwards Enterpriseone Tools: version 9.2 only
• Oracle Jd Edwards World Security: version a9.1 only; version a9.2 only; version a9.3 only; version a9.4 only

Published 2017-05-04. Last modified 2026-06-17.