CRITICAL CISA KEV Actively Exploited

CVE-2026-24061

CVSS v3

9.8

CRITICAL

EPSS Score

99.0 %

exploit probability, as of 2026-10-04

CISA KEV

Yes

known exploited

Exploitation

active

SSVC status

Description

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

CISA Known Exploited Vulnerability

Date Added: 2026-01-26
Patch Due Date: 2026-02-16
Ransomware Use: Unknown

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-01-21
Last Modified: 2026-09-29
Exploit-DB: EDB-52524

Frequently asked questions

What is CVE-2026-24061?

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

Is CVE-2026-24061 actively exploited?

Yes. CVE-2026-24061 is on the CISA Known Exploited Vulnerabilities (KEV) catalog, meaning it has been confirmed as actively exploited in the wild. CISA requires federal agencies to patch by 2026-02-16.

What is the CVSS score for CVE-2026-24061?

CVE-2026-24061 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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