NewStart CGSL MAIN 7.02 : vim Multiple Vulnerabilities (NS-SA-2026-0107)

high Nessus Plugin ID 343593

Synopsis

The remote NewStart CGSL host is affected by multiple vulnerabilities.

Description

The remote NewStart CGSL host, running version MAIN 7.02, has vim packages installed that are affected by multiple vulnerabilities:

- Vim is an open source, command line text editor. Versions prior to 9.2.0077 have a heap-buffer-overflow and a segmentation fault (SEGV) exist in Vim's swap file recovery logic. Both are caused by unvalidated fields read from crafted pointer blocks within a swap file. Version 9.2.0077 fixes the issue.
(CVE-2026-28421)

- 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. (CVE-2026-25749)

- Vim is an open source, command line text editor. Prior to version 9.2.0073, an OS command injection vulnerability exists in the `netrw` standard plugin bundled with Vim. By inducing a user to open a crafted URL (e.g., using the `scp://` protocol handler), an attacker can execute arbitrary shell commands with the privileges of the Vim process. Version 9.2.0073 fixes the issue. (CVE-2026-28417)

- Vim is an open source, command line text editor. Prior to version 9.2.0074, a heap-based buffer overflow out-of-bounds read exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file, Vim can be tricked into reading up to 7 bytes beyond the allocated memory boundary. Version 9.2.0074 fixes the issue. (CVE-2026-28418)

- Vim is an open source, command line text editor. Prior to version 9.2.0075, a heap-based buffer underflow exists in Vim's Emacs-style tags file parsing logic. When processing a malformed tags file where a delimiter appears at the start of a line, Vim attempts to read memory immediately preceding the allocated buffer. Version 9.2.0075 fixes the issue. (CVE-2026-28419)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the vulnerable CGSL vim packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

Plugin Details

Severity: High

ID: 343593

File Name: newstart_cgsl_NS-SA-2026-0107_vim.nasl

Version: 1.1

Type: Local

Family: NewStart CGSL Local Security Checks

Published: 9/8/2026

Updated: 9/8/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.95

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-28421

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:zte:cgsl_main:7, p-cpe:/a:zte:cgsl_main:vim-common, p-cpe:/a:zte:cgsl_main:vim-data, p-cpe:/a:zte:cgsl_main:vim-doc, p-cpe:/a:zte:cgsl_main:vim-enhanced, p-cpe:/a:zte:cgsl_main:vim-filesystem, p-cpe:/a:zte:cgsl_main:vim-minimal, p-cpe:/a:zte:cgsl_main:vim-x11

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/ZTE-CGSL/release, Host/ZTE-CGSL/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/7/2026

Vulnerability Publication Date: 2/6/2026

Reference Information

CVE: CVE-2026-25749, CVE-2026-28417, CVE-2026-28418, CVE-2026-28419, CVE-2026-28420, CVE-2026-28421, CVE-2026-28422, CVE-2026-33412

Detections

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