This bug was made public in 2023 by satoshihunter1. It lets an attacker change the recipient’s Bitcoin address directly in Bitcoin Core’s memory, redirecting the funds to an address they control.
Why won’t this bug be fixed?
From what I’ve read and understand, this bug can’t be fixed because it’s a vulnerability at the lowest level of the operating system. For it to be exploited, the computer already needs to be infected with malware that lets an attacker read and modify Bitcoin Core’s memory.
Lesson to learn
Don't use the same computer/phone where you store your Bitcoin wallet for random stuff, installing whatever you want. Keep those devices clean, don’t mess around with serious things.