Detections
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Alpine: multiple inetutils-telnet packages: security update to 2.8-r0

high Tenable Cloud Security Plugin ID 474887

Description

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

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

 - telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd
 service credentials support added to the login(1) implementation of util-linux in release 2.40. This is
 related to client control over the CREDENTIALS_DIRECTORY environment variable, and requires an
 unprivileged local user to create a login.noauth file. (CVE-2026-28372)

 - telnetd in GNU inetutils through 2.7 allows an out-of-bounds write in the LINEMODE SLC (Set Local
 Characters) suboption handler because add_slc does not check whether the buffer is full. (CVE-2026-32746)

 - telnet in GNU inetutils through 2.7 allows servers to read arbitrary environment variables from clients
 via NEW_ENVIRON SEND USERVAR. (CVE-2026-32772)

Solution

Update the inetutils-telnet library and its related packages to version 2.8-r0 or later.

See Also

https://security.alpinelinux.org/vuln/CVE-2026-24061

https://security.alpinelinux.org/vuln/CVE-2026-28372

https://security.alpinelinux.org/vuln/CVE-2026-32746

https://security.alpinelinux.org/vuln/CVE-2026-32772

Plugin Details

Severity: High

ID: 474887

Version: Revision 1.1

Type: Local

Published: 10/16/2026

Updated: 10/16/2026

Supported Sensors: Agentless Assessment

Risk Information

VPR

Risk Factor: Critical

Score: 9.2

Percentile: 99.76

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-28372

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7.2

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:F/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 1/21/2026

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

Exploitable With

Core Impact

Metasploit (GNU Inetutils Telnet Authentication Bypass Exploit CVE-2026-24061)

Reference Information

CVE: CVE-2026-24061, CVE-2026-28372, CVE-2026-32746, CVE-2026-32772