Linux Distros Unpatched Vulnerability : CVE-2026-1225

low Nessus Plugin ID 295333

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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.

- ACE vulnerability in configuration file processing by QOS.CH logback-core up to and including version 1.5.24 in Java applications, allows an attacker to instantiate classes already present on the class path by compromising an existing logback configuration file. The instantiation of a potentially malicious Java class requires that said class is present on the user's class-path. In addition, the attacker must have write access to a configuration file. However, after successful instantiation, the instance is very likely to be discarded with no further ado. (CVE-2026-1225)

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: 295333

File Name: unpatched_CVE_2026_1225.nasl

Version: 1.3

Type: local

Agent: unix

Family: Misc.

Published: 1/22/2026

Updated: 1/31/2026

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: Medium

Base Score: 6.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2026-1225

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.1

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:U/RC:C

CVSS v4

Risk Factor: Low

Base Score: 1.8

Threat Score: 0.2

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:centos:centos:log4j-over-slf4j, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, p-cpe:/a:centos:centos:jcl-over-slf4j, p-cpe:/a:centos:centos:log4j, p-cpe:/a:redhat:enterprise_linux:slf4j-manual, p-cpe:/a:centos:centos:slf4j, p-cpe:/a:redhat:enterprise_linux:slf4j-ext, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:log4j-slf4j, p-cpe:/a:centos:centos:slf4j-migrator, p-cpe:/a:centos:centos:slf4j-javadoc, cpe:/o:canonical:ubuntu_linux:25.10, cpe:/o:redhat:enterprise_linux:9, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:centos:centos:log4j-jcl, p-cpe:/a:centos:centos:slf4j-manual, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:slf4j-jdk14, p-cpe:/a:redhat:enterprise_linux:slf4j-sources, p-cpe:/a:redhat:enterprise_linux:log4j-slf4j, p-cpe:/a:centos:centos:slf4j-log4j12, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:logback, p-cpe:/a:redhat:enterprise_linux:log4j-over-slf4j, p-cpe:/a:centos:centos:slf4j-ext, p-cpe:/a:centos:centos:log4j-web, p-cpe:/a:canonical:ubuntu_linux:logback, p-cpe:/a:redhat:enterprise_linux:log4j, p-cpe:/a:redhat:enterprise_linux:log4j-jcl, p-cpe:/a:redhat:enterprise_linux:slf4j, p-cpe:/a:redhat:enterprise_linux:slf4j-migrator, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:redhat:enterprise_linux:slf4j-log4j12, p-cpe:/a:redhat:enterprise_linux:slf4j-jcl, p-cpe:/a:redhat:enterprise_linux:log4j-web, p-cpe:/a:redhat:enterprise_linux:jul-to-slf4j, p-cpe:/a:redhat:enterprise_linux:slf4j-jdk14, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:redhat:enterprise_linux:slf4j-javadoc, p-cpe:/a:centos:centos:slf4j-jcl, p-cpe:/a:redhat:enterprise_linux:jcl-over-slf4j, p-cpe:/a:centos:centos:slf4j-sources, p-cpe:/a:centos:centos:jul-to-slf4j

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

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 1/22/2026

Reference Information

CVE: CVE-2026-1225

Detections

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