Detections
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Linux Distros Unpatched Vulnerability : CVE-2026-0964

critical Nessus Plugin ID 298575

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Synopsis

The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be patched.

Description

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

 - The vulnerability exists due to improper sanitation of paths received from SCP servers in libssh, which allows a remote attacker to perform a path traversal attack by using the ssh_scp_pull_request() function to create or overwrite arbitrary files on the client system. (CVE-2026-0964)

Note that Nessus relies on the presence of the package as reported by the vendor.

Solution

There is no known solution at this time.

See Also

https://access.redhat.com/security/cve/cve-2026-0964

https://security-tracker.debian.org/tracker/CVE-2026-0964

Plugin Details

Severity: Critical

ID: 298575

File Name: unpatched_CVE_2026_0964.nasl

Version: 1.7

Type: local

Agent: unix

Family: Misc.

Published: 2/10/2026

Updated: 3/3/2026

Supported Sensors: Agentless Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: High

Score: 7.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.4

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

CVSS Score Source: CVE-2026-0964

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:libssh-config, cpe:/o:redhat:enterprise_linux:9, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:debian:debian_linux:libssh, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:libssh-devel, p-cpe:/a:centos:centos:libssh, p-cpe:/a:redhat:enterprise_linux:libssh-config, p-cpe:/a:centos:centos:libssh-devel, p-cpe:/a:redhat:enterprise_linux:libssh, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0

Required KB Items: Host/cpu, Host/local_checks_enabled, global_settings/vendor_unpatched, Host/OS/identifier

Exploit Ease: No known exploits are available

Reference Information

CVE: CVE-2026-0964

IAVA: 2026-A-0166