According to ChainCatcher, Protos reported that Bitcoin Core developers have issued a new high-risk warning that one in six Bitcoin nodes has a software vulnerability. Specifically, all software below Bitcoin Core version 24.0.1 is at risk.

In older versions of Bitcoin Core software, malicious actors can spam nodes by sending low-difficulty header chains, causing nodes to crash. Developers have fixed this vulnerability in Bitcoin Core version 24.0.1, and the latest version is 27.1.

Although this vulnerability is quite serious, there are few known actual attack cases. Due to the high cost of performing this attack, there is almost no financial benefit to the attacker. 📉🔍