PT-2026-52472 · Vim · Vim

Publicado 2026-06-25 · Atualizado 2026-06-25 · CVE-2026-55693

NVD

CVSS v4.0

5.7

Média

Vetor base

AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vim is an open source, command line text editor. Prior to 9.2.0653, the tree count words() function in src/spellfile.c fills in the word-count fields of a spell-file word trie by walking it iteratively with a depth counter. The counter is bounded only by the trie structure itself; it is never checked against the size of the fixed MAXWLEN-element stack arrays it indexes (arridx[], curi[], wordcount[]). A crafted .spl/.sug file pair, loaded when the user invokes spell suggestion, can drive the descent arbitrarily deep, so the function writes past the end of those arrays. This is a stack out-of-bounds write that corrupts the call frame and crashes the editor. This vulnerability is fixed in 9.2.0653.

Correção

Memory Corruption

Enumeração de Fraquezas

CWE-787

Identificadores relacionados

CVE-2026-55693

Produtos afetados

Vim

Referências · 4

• https://github.com/vim/vim/security/advisories/GHSA-wgh4-64f7-q3jq · Nota
• https://github.com/vim/vim/releases/tag/v9.2.0653 · Nota
• https://github.com/vim/vim/commit/a80874d9b84a01040e3d1aef2d4a59e1934dafb7 · Nota
• https://nvd.nist.gov/vuln/detail/CVE-2026-55693 · Nota de Segurança