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CentOS Linux 7 [TuxCare] Security Update: openssh / openssh-askpass / openssh-cavs / openssh-clients / etc (CENTOS7:CLSA-2026:1790071932)

medium Nessus Plugin ID 353289

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Synopsis

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

Description

The CentOS Linux 7 host has packages installed that are affected by a vulnerability as referenced in the TuxCare CENTOS7:CLSA-2026:1790071932 advisory.

 - In ssh in OpenSSH before 10.5, a use-after-free for realloc data can occur if a certain pair of remote- forwarding operations are concurrent. (CVE-2026-73282)

Note that Nessus has not tested for this issue 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 CENTOS7:CLSA-2026:1790071932.

See Also

https://cve.tuxcare.com/els/releases/CLSA-2026:1790071932

http://www.nessus.org/u?383b270d

Plugin Details

Severity: Medium

ID: 353289

File Name: tuxcare_centos_7_CLSA-2026-1790071932.nasl

Version: 1.2

Type: Local

Agent: unix

Published: 9/30/2026

Updated: 10/1/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 8.1

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

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

CVSS Score Source: CVE-2026-73282

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

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

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

Vulnerability Information

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/22/2026

Vulnerability Publication Date: 8/11/2026

Reference Information

CVE: CVE-2026-73282

CLSA: 2026:1790071932