CVE-2018-3691: Intel Integrated Performance Primitives Cryptography

Medium severity, CVSS 4.7. EPSS: 0.3% chance of exploitation in the next 30 days.

Some implementations in Intel Integrated Performance Primitives Cryptography Library before version 2018 U3.1 do not properly ensure constant execution time.

Affected products

• Intel Integrated Performance Primitives Cryptography: before 2018_u3.1 (fixed in 2018_u3.1)

Published 2018-06-05. Last modified 2026-06-17.