CentOS Linux 7.9 [CIQ] Security Update: grub2 / grub2-common / grub2-debuginfo / grub2-efi-ia32 / etc Multiple Vulnerabilities (ciqsa-2026_0668)

high Nessus Plugin ID 356560

Synopsis

The CentOS Linux host is missing one or more security updates.

Description

The CentOS Linux 7.9 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ ciqsa-2026_0668 advisory.

This advisory aggregates security fixes for the grub2 SRPM in CIQ CentOS Bridge 7.9. It addresses 2 CVEs:
CVE-2021-3695, CVE-2021-3697.

Tenable has extracted the preceding description block directly from the CIQ security advisory.

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

Solution

Update the affected packages based on the guidance in CIQ advisory ciqsa-2026_0668.

Plugin Details

Severity: High

ID: 356560

File Name: ciq_centos_7_9_ciqsa-2026_0668.nasl

Version: 1.1

Type: Local

Agent: unix

Family: CentOS Local Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.58

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 4.4

Temporal Score: 3.3

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

CVSS Score Source: CVE-2021-3697

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.1

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

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

Vulnerability Information

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2026

Vulnerability Publication Date: 6/16/2022

Reference Information

CVE: CVE-2021-3695, CVE-2021-3697

Detections

Analytics