CVE-2026-55693

Katalog CVE

CVSS 7.8 · High EPSS 0,12%

Kerentanan Out-of-bounds Write pada vim. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

25 Juni 2026

Terakhir diubah

26 Juni 2026

Status NVD

Analyzed

CVSS 3.1

7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-787: Out-of-bounds Write

EPSS (30 hari)

0,12% peluang dieksploitasi; lebih tinggi dari 1,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/vim/vim/security/advisories/GHSA-wgh4-64f7-q3jq advisory vendor
• https://github.com/vim/vim/commit/a80874d9b84a01040e3d1aef2d4a59e1934dafb7 patch
• https://github.com/vim/vim/releases/tag/v9.2.0653 product