Critical GNU InetUtils telnetd Flaw Lets Attackers Bypass Login and Gain Root Access

A critical security flaw has been disclosed in the GNU InetUtils telnet daemon telnetd that went unnoticed for nearly 11 years. The vulnerability, tracked as CVE-2026-24061 , is rated 9.8 out of 10.0 on the CVSS scoring system. It affects all versions of GNU InetUtils from version 1.9.3 up to and...

Exploit for CVE-2026-24061

CVE-2026-24061 GNU inetutils-telnetd Remote Authentication By...

CVE-2026-24061

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

[SECURITY] [DSA 6106-1] inetutils security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6106-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso January 22, 2026 https://www.debian.org/security/faq -...

Debian dsa-6106 : inetutils - security update

The remote Debian 12 / 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6106 advisory. - ------------------------------------------------------------------------- Debian Security Advisory DSA-6106-1 [email protected] https://www.debian.org/security/...

Debian: Security Advisory (DSA-6106-1)

The remote host is missing an update for the Debian SPDX-FileCopyrightText: 2026 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

GNU InetUtils Telnetd Remote Authentication Bypass Vulnerability

GNU InetUtils telnetd is a telnet service daemon in the GNU InetUtils suite that listens on TCP port 23 and provides clients with plaintext terminal access based on the Telnet protocol. A remote authentication bypass vulnerability exists in GNU InetUtils Telnetd, which can be exploited to bypass...

VulnCheck KEV: CVE-2026-24061

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

DSA-6106-1 inetutils - security update

Bulletin has no description...

Vulnerability fixed in GNU Inetutils telnetd

Security researchers have found a a vulnerability in Inetutils telnetd version 2.7. This vulnerability has been present since version 1.9.3 that came out in 2015, according to the researchers. The vulnerability is in the way the telnetd service handles the USER environment variable. By setting th...

CVE-2026-24061

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 remote authentication bypass via a "-f root" value for the USER environment variable...

CVE-2026-24061

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

UBUNTU-CVE-2026-24061

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 remote authentication bypass via a "-f root" value for the USER environment variable...

CVE-2026-24061

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 remote authentication bypass via a "-f root" value for the USER environment variable...

CVE-2026-24061

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

CVE-2026-24061

Summary: CVE-2026-24061 affects GNU Inetutils’ telnetd (up to 2.7) and enables remote authentication bypass by setting the USER environment variable to "-f root". This can lead to unauthorized root access if telnetd is reachable. What’s affected (per provided docs): inetutils telnetd; GNU Inetuti...

GNU Inetutils 参数注入漏洞

GNU InetUtils telnetd is a telnet service daemon in the GNU InetUtils suite that listens on TCP port 23 and provides clients with plaintext terminal access based on the Telnet protocol. A remote authentication bypass vulnerability exists in GNU InetUtils Telnetd, which can be exploited to bypass...