🛡️ CVE-2026-26269
🟡 CVSS 5.4 — Medium ✅ No Known Exploit CWE-121 NVD
5.4
CVSS Score
0 Low4 Medium7 High9 Critical10

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.

Details

Severity MEDIUM
CVSS Score 5.4
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
CWE CWE-121
Public Exploit ✅ No
Source NVD
Published 2026-02-13
Updated 2026-06-02
Modified 2026-02-18

Affected Packages

Software From version Fixed in
vim — 9.1.2148

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