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CentOS Linux 6 [TuxCare] Security Update: exim / exim-greylist / exim-mon / exim-mysql / exim-pgsql Multiple Vulnerabilities (CENTOS6:CLSA-2026:1787230875)

high Nessus Plugin ID 362232

Synopsis

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

Description

The CentOS Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS6:CLSA-2026:1787230875 advisory.

 - Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled. (CVE-2026-66140)

 - Exim before 4.99.5 allows .forward privilege escalation because force_command for a pipe transport is mishandled. (CVE-2026-66141)

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 TuxCare advisory CENTOS6:CLSA-2026:1787230875.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1787230875

http://www.nessus.org/u?47f6a169

Plugin Details

Severity: High

ID: 362232

File Name: tuxcare_centos_6_CLSA-2026-1787230875.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.35

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-66141

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS:3.0/AV:L/AC:L/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/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

Exploit Ease: No known exploits are available

Patch Publication Date: 8/20/2026

Vulnerability Publication Date: 7/24/2026

Reference Information

CVE: CVE-2026-66140, CVE-2026-66141

CLSA: 2026:1787230875