PT-2026-8027 · Vim+3 · Vim+3

Chrisbra

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Published

2026-01-01

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Updated

2026-04-08

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CVE-2026-26269

CVSS v2.0

7.6

High

VectorAV:N/AC:H/Au:N/C:C/I:C/A:C
Name of the Vulnerable Software and Affected Versions Vim versions prior to 9.1.2148
Description Vim is a command line text editor. A stack buffer overflow exists in Vim’s NetBeans integration when processing the specialKeys command, affecting Vim builds that enable and use the NetBeans feature. The overflow occurs within the special keys() function (located in src/netbeans.c) due to a lack of bounds checking in a while loop that writes data into a 64-byte stack buffer (keybuf). A malicious NetBeans server can exploit this by sending a crafted specialKeys command, potentially overflowing the keybuf. The vulnerability is triggered when Vim is started with NetBeans integration enabled, connects to a NetBeans server, and receives the malicious command.
Recommendations Versions prior to 9.1.2148 should be updated to version 9.1.2148 or later.

Exploit

Fix

Stack Overflow

Weakness Enumeration

Related Identifiers

AZL-77592
AZL-77850
BDU:2026-05139
CVE-2026-26269
ECHO-D50C-D5DC-4726
GHSA-9W5C-HWR9-HC68
MGASA-2026-0042
OESA-2026-1429
OESA-2026-1497
OESA-2026-1498
OESA-2026-1499
OESA-2026-1500
OESA-2026-1501
OPENSUSE-SU-2026:20403-1
SUSE-SU-2026:0910-1
SUSE-SU-2026:1051-1
SUSE-SU-2026:1095-1
SUSE-SU-2026:20717-1
SUSE-SU-2026:20738-1
SUSE-SU-2026:20759-1
SUSE-SU-2026:20916-1
USN-8101-1

Affected Products

Linuxmint
Red Os
Ubuntu
Vim