CVE-2026-24061

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

CVSS v3 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-88

Threats tracking this CVE

• SolarWinds Access Rights Manager (ARM) Systemic Deserialization RCE — 17 CVEs, 6 Unauth SYSTEM RCE, Access Control Paradox — CRITICAL

References

• https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc
• https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b
• https://lists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.html
• https://www.gnu.org/software/inetutils/
• https://www.openwall.com/lists/oss-security/2026/01/20/2
• https://www.openwall.com/lists/oss-security/2026/01/20/8
• https://www.vicarius.io/vsociety/posts/cve-2026-24061-detection-script-remote-authentication-bypass-in-gnu-inetutils-package
• 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.debian.org/debian-lts-announce/2026/01/msg00025.html

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