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NewStart CGSL MAIN 6.06 : grub2 Vulnerability (NS-SA-2026-0058)

high Nessus Plugin ID 330503

Synopsis

The remote NewStart CGSL host is affected by a vulnerability.

Description

The remote NewStart CGSL host, running version MAIN 6.06, has grub2 packages installed that are affected by a vulnerability:

 - When rendering certain unicode sequences, grub2's font code doesn't proper validate if the informed glyph's width and height is constrained within bitmap size. As consequence an attacker can craft an input which will lead to a out-of-bounds write into grub2's heap, leading to memory corruption and availability issues. Although complex, arbitrary code execution could not be discarded. (CVE-2022-3775)

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 grub2 packages. Note that updated packages may not be available yet. Please contact ZTE for more information.

See Also

https://security.gd-linux.com/info/CVE-2022-3775

https://security.gd-linux.com/notice/NS-SA-2026-0058

Plugin Details

Severity: High

ID: 330503

File Name: newstart_cgsl_NS-SA-2026-0058_grub2.nasl

Version: 1.1

Type: Local

Published: 7/29/2026

Updated: 7/29/2026

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.37

CVSS v2

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 4.6

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

CVSS Score Source: CVE-2022-3775

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: cpe:/o:zte:cgsl_main:6, p-cpe:/a:zte:cgsl_main:grub2-common, p-cpe:/a:zte:cgsl_main:grub2-efi-x64-modules, p-cpe:/a:zte:cgsl_main:grub2-efi-x64, p-cpe:/a:zte:cgsl_main:grub2-pc-modules, p-cpe:/a:zte:cgsl_main:grub2-pc, p-cpe:/a:zte:cgsl_main:grub2-tools-efi, p-cpe:/a:zte:cgsl_main:grub2-tools-extra, p-cpe:/a:zte:cgsl_main:grub2-tools-minimal, p-cpe:/a:zte:cgsl_main:grub2-tools

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/27/2026

Vulnerability Publication Date: 11/16/2022

Reference Information

CVE: CVE-2022-3775