CVE-2026-26269

5.4 MEDIUM
Published: February 13, 2026 Modified: February 18, 2026
View on NVD

Description

Vim is an open source, command line text editor. Prior to 9.1.2148, a stack buffer overflow vulnerability exists in Vim's NetBeans integration when processing the specialKeys command, affecting Vim builds that enable and use the NetBeans feature. The Stack buffer overflow exists in special_keys() (in src/netbeans.c). The while (*tok) loop writes two bytes per iteration into a 64-byte stack buffer (keybuf) with no bounds check. A malicious NetBeans server can overflow keybuf with a single specialKeys command. The issue has been fixed as of Vim patch v9.1.2148.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/vim/vim/releases/tag/v9.1.2148
Source: security-advisories@github.com
Release Notes
https://github.com/vim/vim/security/advisories/GHSA-9w5c-hwr9-hc68
Source: security-advisories@github.com
Patch Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/02/13/2
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.4 / 10.0
EPSS (Exploit Probability)
0.0%
13th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

vim