CVE-2025-7396 – WolfSSL Curve25519 Blinding Support Vulnerability (Side-Channel Attack)

CVE ID : CVE-2025-7396

Published : July 18, 2025, 11:15 p.m. | 1 hour, 29 minutes ago

Description : 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.

Severity: 0.0 | NA

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