Intel

AIKIDO-2026-10429

wolfSSL.wolfssl is vulnerable to Integer Overflow or Wraparound

Integer Overflow or WraparoundCVE-2026-3229 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

wolfssl_add_to_chain can integer-overflow the allocation size for certificate chain storage, leading to heap corruption when extra chain certificates are loaded through compatibility APIs enabled by certain OpenSSL-style build options. The issue is not remotely exploitable without a compromised loader of certificates. The fix validates sizes before writing chain data.

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 Integer Overflow or Wraparound in versions 0.0.1 - 5.8.4.

How to fix this

Upgrade the wolfSSL.wolfssl library to the patch version.