Linux Distros Unpatched Vulnerability : CVE-2026-107886

medium Nessus Plugin ID 364424

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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.

- OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify- Class replaces an existing class member list, add_class() frees pclass->printers without clearing the pointer. If subsequent validation fails, the class retains the dangling pointer; CUPS-Delete-Class subsequently frees the same allocation in cupsdDeletePrinter(). A client authorized to modify and delete classes can cause scheduler-wide denial of service. The default policy requires @SYSTEM privileges.
(CVE-2026-107886)

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: Medium

ID: 364424

File Name: unpatched_CVE_2026_107886.nasl

Version: 1.6

Type: Local

Agent: unix

Family: Misc.

Published: 10/9/2026

Updated: 10/21/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.5

CVSS v2

Risk Factor: High

Base Score: 7.7

Temporal Score: 6.9

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

CVSS Score Source: CVE-2026-107886

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, cpe:/o:centos:centos:7, cpe:/o:centos:centos:8, cpe:/o:debian:debian_linux:12.0, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:canonical:ubuntu_linux:cups, p-cpe:/a:centos:centos:cups-client, p-cpe:/a:centos:centos:cups-devel, p-cpe:/a:centos:centos:cups-filesystem, p-cpe:/a:centos:centos:cups-ipptool, p-cpe:/a:centos:centos:cups-libs, p-cpe:/a:centos:centos:cups-lpd, p-cpe:/a:centos:centos:cups-printerapp, p-cpe:/a:centos:centos:cups, p-cpe:/a:debian:debian_linux:cups, p-cpe:/a:redhat:enterprise_linux:cups-client, p-cpe:/a:redhat:enterprise_linux:cups-devel, p-cpe:/a:redhat:enterprise_linux:cups-filesystem, p-cpe:/a:redhat:enterprise_linux:cups-ipptool, p-cpe:/a:redhat:enterprise_linux:cups-libs, p-cpe:/a:redhat:enterprise_linux:cups-lpd, p-cpe:/a:redhat:enterprise_linux:cups-printerapp, p-cpe:/a:redhat:enterprise_linux:cups

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

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 10/9/2026

Reference Information

CVE: CVE-2026-107886

Detections

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