CVEvulnerability

CVE-2026-24061

9.8 CRITICAL Known exploited Published 2026-01-21 Modified 2026-09-30 Official page ↗

CISA Known Exploited Vulnerability

GNU InetUtils Argument Injection Vulnerability — GNU InetUtils

GNU InetUtils contains an argument injection vulnerability in telnetd that could allow for remote authentication bypass via a "-f root" value for the USER environment variable.

Added to KEV
2026-01-26
Remediation due
2026-02-16
Ransomware use
Unknown
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes
This vulnerability could affect an open-source component, third-party library, protocol, or proprietary implementation that could be used by different products. For more information, please see: https://cgit.git.savannah.gnu.org/cgit/inetutils.git ; https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc; https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b ; https://nvd.nist.gov/vuln/detail/CVE-2026-24061
Status
Analyzed
Published
2026-01-21
Last modified
2026-09-30
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-88

Description

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

Affected configurations

• gnu inetutils (>= 1.9.3 <= 2.7) • debian debian linux 11.0

Related

Weakness · CWE (1)

  • CWE-88 Improper Neutralization of Argument Delimiters in a Command weakness

References