Linux Distros Unpatched Vulnerability : CVE-2026-24061

critical Nessus Plugin ID 297689

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.

- telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a -f root value for the USER environment variable. (CVE-2026-24061)

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://ubuntu.com/security/CVE-2026-24061

Plugin Details

Severity: Critical

ID: 297689

File Name: unpatched_CVE_2026_24061.nasl

Version: 1.4

Type: local

Agent: unix

Family: Misc.

Published: 2/3/2026

Updated: 2/5/2026

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

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

CVSS v2

Risk Factor: High

Base Score: 9

Temporal Score: 8.6

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

CVSS Score Source: CVE-2026-24061

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.6

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:F/RL:U/RC:C

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:14.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:inetutils, cpe:/o:canonical:ubuntu_linux:18.04:-:lts

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

Exploit Available: true

Exploit Ease: Exploits are available

CISA Known Exploited Vulnerability Due Dates: 2/16/2026

Exploitable With

Core Impact

Reference Information

CVE: CVE-2026-24061