CVE-2026-55693 | Vim up to 9.2.652 src/spellfile.c tree_count_words word-count out-of-bounds write (Nessus ID 323787)

A vulnerability described as critical has been identified in Vim up to 9.2.652. Affected by this issue is the function tree_count_words of the file src/spellfile.c. Executing a manipulation of the argument word-count can lead to out-of-bounds write.

The identification of this vulnerability is CVE-2026-55693. The attack may be launched remotely. There is no exploit available.

Upgrading the affected component is recommended.