Buffer overflow in Vim
CVE-2026-55892
Vim is an open source, command line text editor. Prior to 9.2.0662, the dump_prefixes() function in src/spell.c walks a spell-file prefix trie iteratively with a depth counter while dumping the prefixes that apply to a word. The counter is…
Vulnerability class: Buffer Overflow
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.
Affected products
- Vim — versions < 9.2.0662
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55892?
- CVE-2026-55892 is a medium-severity vulnerability in Vim, classified under Out-of-bounds Write. CVSS score: 5.5/10. Published 2026-06-25.
- How severe is CVE-2026-55892?
- Medium severity. CVSS v3 base score is 5.5 out of 10.