Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.
The MITRE CVE dictionary describes this issue as:
Heap-based Buffer Overflow in GitHub repository vim/vim prior to 9.0.
Red Hat Product Security has rated this issue as having a Low security impact, because the "victim" 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/
Untrusted vim scripts with -s [scriptin] are not recommended to run.