Medium 6.6Published Feb 6, 2026

CVE-2026-25749Vim is an open source, command line text editor.

Updated under an hour ago (2026-10-19 06:30 UTC)

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It affects neovim and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for neovim

Exploited in the last 30 days

Vim is an open source, command line text editor. Prior to version 9.1.2132, a heap buffer overflow vulnerability exists in Vim's tag file resolution logic when processing the 'helpfile' option. The vulnerability is located in the get_tagfname() function in src/tag.c. When processing help file tags, Vim copies the user-controlled 'helpfile' option value into a fixed-size heap buffer of MAXPATHL + 1 bytes (typically 4097 bytes) using an unsafe STRCPY() operation without any bounds checking. This issue has been patched in version 9.1.2132.

CVSS: 6.6 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:H
Weakness (CWE): CWE-122
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jun 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

neovim neovim neovim:neovim	through 0.11.6	NVD
vim vim vim:vim	before 9.1.2132	NVD

References

https://github.com/vim/vim/commit/0714b15940b245108e6e9d7aa2260dd849a26fa9patch
https://github.com/vim/vim/releases/tag/v9.1.2132product
https://github.com/vim/vim/security/advisories/GHSA-5w93-4g67-mm43exploit, patch, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.