Detections
Analytics

Linux Distros Unpatched Vulnerability : CVE-2026-39314

medium Nessus Plugin ID 305257

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, an integer underflow vulnerability in _ppdCreateFromIPP() (cups/ppd-cache.c) allows any unprivileged local user to crash the cupsd root process by supplying a negative job-password- supported IPP attribute. The bounds check only caps the upper bound, so a negative value passes validation, is cast to size_t (wrapping to ~2^64), and is used as the length argument to memset() on a 33-byte stack buffer. This causes an immediate SIGSEGV in the cupsd root process. Combined with systemd's Restart=on-failure, an attacker can repeat the crash for sustained denial of service. (CVE-2026-39314)

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-2026-39314

https://security-tracker.debian.org/tracker/CVE-2026-39314

Plugin Details

Severity: Medium

ID: 305257

File Name: unpatched_CVE_2026_39314.nasl

Version: 1.2

Type: Local

Agent: unix

Family: Misc.

Published: 4/7/2026

Updated: 4/8/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.9

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 4.2

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

CVSS Score Source: CVE-2026-39314

CVSS v3

Risk Factor: Medium

Base Score: 4

Temporal Score: 3.7

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:redhat:enterprise_linux:cups-filesystem, p-cpe:/a:redhat:enterprise_linux:cups-printerapp, cpe:/o:debian:debian_linux:12.0, cpe:/o:redhat:enterprise_linux:9, p-cpe:/a:redhat:enterprise_linux:cups-ipptool, p-cpe:/a:centos:centos:cups-printerapp, p-cpe:/a:redhat:enterprise_linux:cups-lpd, cpe:/o:centos:centos:8, p-cpe:/a:centos:centos:cups-lpd, cpe:/o:redhat:enterprise_linux:8, cpe:/o:redhat:enterprise_linux:10, cpe:/o:debian:debian_linux:13.0, p-cpe:/a:centos:centos:cups, p-cpe:/a:centos:centos:cups-filesystem, p-cpe:/a:debian:debian_linux:cups, p-cpe:/a:centos:centos:cups-client, p-cpe:/a:redhat:enterprise_linux:cups-client, p-cpe:/a:centos:centos:cups-devel, cpe:/o:centos:centos:7, p-cpe:/a:redhat:enterprise_linux:cups-libs, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:cups-devel, p-cpe:/a:centos:centos:cups-libs, cpe:/o:debian:debian_linux:14.0, p-cpe:/a:centos:centos:cups-ipptool, p-cpe:/a:redhat:enterprise_linux:cups

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: 4/7/2026

Reference Information

CVE: CVE-2026-39314