CVE-2026-57451 | Vim is an open source, command line text editor. Prior to 9.… | CVSS 5.3 MEDIUM

Description

Vim is an open source, command line text editor. Prior to 9.2.0670, get_text_props() in src/textprop.c reads a uint16 property count stored inline after a line's text and returns it as the number of 32-byte textprop_T entries that follow. The only check is a floor that guarantees room for a single entry; the count is never checked against the amount of data actually present. A line that declares a large count while carrying little data causes consumers to read far past the end of the line buffer. Such a line can be delivered through a crafted undo file, leading to a crash. This vulnerability is fixed in 9.2.0670.

Metadata

CVE ID: CVE-2026-57451
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-06-24 13:21 UTC
Published: 2026-06-25 15:28 UTC
Last updated: 2026-06-25 16:04 UTC
Primary CWE: CWE-125
CWE-125: Out-of-bounds Read
Vendor / Product: vim / vim
Sources: cve.org · NVD

Severity & Metrics

5.3 MEDIUM CVSS 3.1

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (1)

Vendor	Product	Platform	Versions
vim	vim	—	< 9.2.0670

Weakness (CWE)

CWE	Source	Description
CWE-125	cna	CWE-125: Out-of-bounds Read

CVSS scores (1)

Score	Severity	Version	Source	Vector
5.3	MEDIUM	3.1	cna	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:H

References (3)

https://github.com/vim/vim/security/advisories/GHSA-f36c-2qcp-7gpw https://github.com/vim/vim/security/advisories/GHSA-f36c-2qcp-7gpw
https://github.com/vim/vim/commit/b2338ca90643e2f01ecb6547c1172716aaec4f79 https://github.com/vim/vim/commit/b2338ca90643e2f01ecb6547c1172716aaec4f79
https://github.com/vim/vim/releases/tag/v9.2.0670 https://github.com/vim/vim/releases/tag/v9.2.0670