RockyLinux 10 : openssh (RLSA-2026:47757)

critical Nessus Plugin ID 330844

Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:47757 advisory.

* openssh: Local MITM of X11 forwarding via abstract UNIX socket pre-binding in Rocky Linux OpenSSH client versions (CVE-2026-55655)

* openssh: Double free in Rocky Linux versions of OpenSSH DH-GEX client path during FIPS known-group validation leads to client-side denial of service (CVE-2026-55653)

* openssh: Heap out-of-bounds read in Rocky Linux versions of OpenSSH GSSAPI indicator cleanup due to missing NULL sentinel termination (CVE-2026-55654)

* openssh: OpenSSH: Use-after-free vulnerability during host key re-exchange on the client side (CVE-2026-60002)

* openssh: OpenSSH: `scp` file misplacement vulnerability during remote copy (CVE-2026-59996)

Tenable has extracted the preceding description block directly from the RockyLinux 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.

Plugin Details

Severity: Critical

ID: 330844

File Name: rocky_linux_RLSA-2026-47757.nasl

Version: 1.1

Type: Local

Family: Rocky Linux Local Security Checks

Published: 7/30/2026

Updated: 7/30/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.61

CVSS v2

Risk Factor: High

Base Score: 9.7

Temporal Score: 7.6

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

CVSS Score Source: CVE-2026-60002

CVSS v3

Risk Factor: Critical

Base Score: 9.4

Temporal Score: 8.4

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

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

Vulnerability Information

CPE: cpe:/o:rocky:linux:10, p-cpe:/a:rocky:linux:openssh-askpass-debuginfo, p-cpe:/a:rocky:linux:openssh-askpass, p-cpe:/a:rocky:linux:openssh-clients-debuginfo, p-cpe:/a:rocky:linux:openssh-clients, p-cpe:/a:rocky:linux:openssh-debuginfo, p-cpe:/a:rocky:linux:openssh-debugsource, p-cpe:/a:rocky:linux:openssh-keycat-debuginfo, p-cpe:/a:rocky:linux:openssh-keycat, p-cpe:/a:rocky:linux:openssh-keysign-debuginfo, p-cpe:/a:rocky:linux:openssh-keysign, p-cpe:/a:rocky:linux:openssh-server-debuginfo, p-cpe:/a:rocky:linux:openssh-server, p-cpe:/a:rocky:linux:openssh

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/30/2026

Vulnerability Publication Date: 6/23/2026

Reference Information

CVE: CVE-2026-55653, CVE-2026-55654, CVE-2026-55655, CVE-2026-59996, CVE-2026-60002

Detections

Analytics