Vulnerability DatabaseCVE-2026-24061
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CVE-2026-24061
January 21, 2026
telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
Related Resources (13)
https://lists.debian.org/debian-lts-announce/2026/01/msg00025.html
https://www.openwall.com/lists/oss-security/2026/01/20/2
https://www.labs.greynoise.io/grimoire/2026-01-22-f-around-and-find-out-18-hours-of-unsolicited-houseguests/index.html
https://www.vicarius.io/vsociety/posts/cve-2026-24061-detection-script-remote-authentication-bypass-in-gnu-inetutils-package
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-24061
https://www.gnu.org/software/inetutils/
https://www.openwall.com/lists/oss-security/2026/01/20/8
https://www.vicarius.io/vsociety/posts/cve-2026-24061-mitigation-script-remote-authentication-bypass-in-gnu-inetutils-package
http://www.openwall.com/lists/oss-security/2026/01/22/1
https://lists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.html
https://www.openwall.com/lists/oss-security/2026/01/20/2#:~:text=root@...a%3A~%20USER='
https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc
https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b
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CVSS v4
Base Score:
9.3
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
ATTACKED
CVSS v3
Base Score:
9.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Exploit Maturity
HIGH
Weakness Type (CWE)
Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
CWE-88
EPSS
Base Score:
86.77