CVE-2025-7396: wolfSSL

Medium severity, CVSS 4.6. EPSS: 0.2% chance of exploitation in the next 30 days.

In wolfSSL release 5.8.2 blinding support is turned on by default for Curve25519 in applicable builds. The blinding configure option is only for the base C implementation of Curve25519. It is not needed, or available with; ARM assembly builds, Intel assembly builds, and the small Curve25519 feature. While the side-channel attack on extracting a private key would be very difficult to execute in practice, enabling blinding provides an additional layer of protection for devices that may be more susceptible to physical access or side-channel observation.

Affected products

• wolfSSL wolfSSL: version 5.8.2 only

Published 2025-07-18. Last modified 2026-06-17.