CVE-2026-24061

unknown KEV

Published 2026-01-26 · Modified 2026-01-26

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CVSS v3

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CVSS v4 NEW

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not yet in upstream

VIR risk

2.5

Description

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.

CISA KEV

Vendor: GNU
Product: InetUtils
Due date: 2026-02-16

Predictions

Exploit likelihood

99%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

{Vendor advisory: cisa-kev — 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}

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-52524 local linux

aliguliyev · 2026-04-29

GNU InetUtils 2.6 - Telnetd Remote Privilege Escalation

Source code queued for fetch — refresh in a moment.

Metasploit modules

exploit_linux/telnet/gnu_inetutils_auth_bypass rank 500

GNU Inetutils Telnet Authentication Bypass Exploit CVE-2026-24061

Source fetch failed: fetch_error — view the original via the link above.

OS impact

Debian Fixed 5 releases

Version	Status	Fixed in
trixie	Fixed	`2:2.6-3+deb13u1`
sid	Fixed	`2:2.7-2`
forky	Fixed	`2:2.7-2`
bullseye	Fixed	`2:2.0-1+deb11u4`
bookworm	Fixed	`2:2.4-2+deb12u2`

References

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.