The vulnerability affects the KeePass 2.X branch for Windows, and possibly for Linux and macOS. It has been fixed in the test versions of KeePass v2.54 – the official release is expected by July 2023. It’s unfortunate that the PoC tool is already publicly available and the release of the new version so far off, but the risk of CVE-2023-32784 being abused in the wild is likely to be pretty low, according to the researcher.
I read that! Props on the auditor for doing it gratis; it’s rare to see people pay back the benefit they get from OSS.