Linux Distros Unpatched Vulnerability : CVE-2025-4878

low Nessus Plugin ID 245950

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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.

- A vulnerability was found in libssh, where an uninitialized variable exists under certain conditions in the privatekey_from_file() function. This flaw can be triggered if the file specified by the filename doesn't exist and may lead to possible signing failures or heap corruption. (CVE-2025-4878)

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

Solution

There is no known solution at this time.

Plugin Details

Severity: Low

ID: 245950

File Name: unpatched_CVE_2025_4878.nasl

Version: 1.5

Type: local

Agent: unix

Family: Misc.

Published: 8/8/2025

Updated: 9/14/2025

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

Risk Information

VPR

Risk Factor: Low

Score: 2.5

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2025-4878

CVSS v3

Risk Factor: Low

Base Score: 3.6

Temporal Score: 3.2

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

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

Vulnerability Information

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

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 7/3/2025

Reference Information

CVE: CVE-2025-4878

Detections

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