CVE-2025-7396

Medium

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.

SeverityMedium
CVSS4.6
Exploit probability—
ProductWolfssl
PublishedJul 18, 2025
First seenJul 18, 2025
Weakness typeCWE-385CWE-385

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
wolfssl wolfssl5.8.2—

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