Linux Distros Unpatched Vulnerability : CVE-2026-26269

high Nessus Plugin ID 299054

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

- 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. (CVE-2026-26269)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

Plugin Details

Severity: High

ID: 299054

File Name: unpatched_CVE_2026_26269.nasl

Version: 1.10

Type: local

Agent: unix

Family: Misc.

Published: 2/14/2026

Updated: 3/26/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS Score Source: CVE-2026-26269

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:vim-enhanced, cpe:/o:redhat:enterprise_linux:6, p-cpe:/a:centos:centos:vim-x11, p-cpe:/a:redhat:enterprise_linux:xxd, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:vim, p-cpe:/a:centos:centos:vim-minimal, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:vim, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:vim-filesystem, p-cpe:/a:redhat:enterprise_linux:vim-common, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:redhat:enterprise_linux:vim-minimal, p-cpe:/a:centos:centos:vim-enhanced, cpe:/o:centos:centos:7, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:centos:centos:vim-data, p-cpe:/a:redhat:enterprise_linux:vim-x11, p-cpe:/a:centos:centos:xxd, p-cpe:/a:centos:centos:vim-common, p-cpe:/a:centos:centos:vim, p-cpe:/a:redhat:enterprise_linux:vim-filesystem, p-cpe:/a:redhat:enterprise_linux:vim-data

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 2/13/2026

Reference Information

CVE: CVE-2026-26269

IAVA: 2026-A-0173-S

Detections

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