Intel

AIKIDO-2026-10428

wolfSSL.wolfssl is vulnerable to Use of Cryptographically Weak Key

Use of Cryptographically Weak KeyCVE-2026-3230 Published Mar 30, 2026

12

Low Risk

This Affects:

C++wolfSSL.wolfssl
0.0.1 - 5.8.4
Fixed in 5.9.0
Are you affected? Scan for Free

TL;DR

After a crafted HelloRetryRequest, the client may accept a ServerHello that omits the required key_share extension yet still proceeds far enough to authenticate the server and derive keys with predictable material. The fix rejects the malformed handshake so a connection cannot be established with the weak key derivation path.

Who does this affect?

You are affected if you are using a version that falls within the vulnerable range.

Background info

wolfSSL.wolfssl is vulnerable to Use of Cryptographically Weak Key in versions 0.0.1 - 5.8.4.

How to fix this

Upgrade the wolfSSL.wolfssl library to the patch version.