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CVE-2026-24061GNU InetUtils Argument Injection Vulnerability
telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
9.8 CRITICALEPSS 98.98%⚡ Known Exploited (CISA KEV)NVD: Published
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 9.8 | CRITICAL | 3.1mitre (CNA) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Details
- CVE ID
- CVE-2026-24061
- Status
- Published
- Assigner (CNA)
- mitre
- Published
- Jan 21, 2026
- Last modified
- 2026-09-29 19:43 UTC
- Weaknesses
- CWE-88 · Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected Products
As published by the CNA in the CVE record.
GNUInetutils1 version range
- 1.9.3 through 2.7
References
- openwall.com https://www.openwall.com/lists/oss-security/2026/01/20/2
- openwall.com https://www.openwall.com/lists/oss-security/2026/01/20/8
- gnu.org https://www.gnu.org/software/inetutils/
- lists.gnu.org https://lists.gnu.org/archive/html/bug-inetutils/2026-01/msg00004.html
- codeberg.org https://codeberg.org/inetutils/inetutils/commit/fd702c02497b2f398e739e3119bed0b23dd7aa7b
- codeberg.org https://codeberg.org/inetutils/inetutils/commit/ccba9f748aa8d50a38d7748e2e60362edd6a32cc
- vicarius.io https://www.vicarius.io/vsociety/posts/cve-2026-24061-detection-script-remote-authentication-bypass-in-gnu-inetutils-package
- vicarius.io https://www.vicarius.io/vsociety/posts/cve-2026-24061-mitigation-script-remote-authentication-bypass-in-gnu-inetutils-package
- redteam.ae https://redteam.ae/blog/cve-2026-24061-inetutils-telnetd-root-bypass
Sources
- NVD (unavailable at last refresh)
- CVE.org
- CISA KEV
- FIRST EPSS