Use After Free in GitHub repository vim/vim prior to 9.0.0046.
The MITRE CVE dictionary describes this issue as:
Use After Free in GitHub repository vim/vim prior to 9.0.0046.
Red Hat Product Security has rated this issue as having a Low security impact because the user has to run an untrusted file IN SCRIPT MODE. Someone who is running untrusted files in script mode is equivalent to someone just taking a random python script and running it.
For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/ and Red Hat Enterprise Linux Life Cycle & Updates Policy: https://access.redhat.com/support/policy/updates/errata/.
Do not run untrusted vim scripts as it's not recommended.