Linux Distros Unpatched Vulnerability : CVE-2026-34980

medium Nessus Plugin ID 304971

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 is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, in a network-exposed cupsd with a shared target queue, an unauthorized client can send a Print-Job to that shared PostScript queue without authentication. The server accepts a page- border value supplied as textWithoutLanguage, preserves an embedded newline through option escaping and reparse, and then reparses the resulting second-line PPD: text as a trusted scheduler control record. A follow-up raw print job can therefore make the server execute an attacker-chosen existing binary such as /usr/bin/vim as lp. At time of publication, there are no publicly available patches. (CVE-2026-34980)

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: 304971

File Name: unpatched_CVE_2026_34980.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 4/5/2026

Updated: 4/5/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, 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-2026-34980

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

CVSS v4

Risk Factor: Medium

Base Score: 6.1

Threat Score: 2.4

Threat Vector: CVSS:4.0/E:U

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:centos:centos:cups-libs, p-cpe:/a:centos:centos:cups-filesystem, p-cpe:/a:centos:centos:cups-ipptool, p-cpe:/a:redhat:enterprise_linux:cups-libs, p-cpe:/a:redhat:enterprise_linux:cups-filesystem, p-cpe:/a:redhat:enterprise_linux:cups-ipptool, cpe:/o:redhat:enterprise_linux:10, cpe:/o:redhat:enterprise_linux:8, p-cpe:/a:centos:centos:cups, p-cpe:/a:centos:centos:cups-devel, p-cpe:/a:centos:centos:cups-lpd, p-cpe:/a:centos:centos:cups-client, p-cpe:/a:debian:debian_linux:cups, p-cpe:/a:redhat:enterprise_linux:cups, p-cpe:/a:redhat:enterprise_linux:cups-devel, p-cpe:/a:redhat:enterprise_linux:cups-lpd, p-cpe:/a:redhat:enterprise_linux:cups-client, cpe:/o:centos:centos:8, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:cups-printerapp, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:centos:centos:cups-printerapp, cpe:/o:debian:debian_linux:13.0, cpe:/o:debian:debian_linux:14.0

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: 4/3/2026

Reference Information

CVE: CVE-2026-34980

Detections

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