CVE-2026-24061

CVE Enrichment

CVSS: 9.8 CRITICAL
EPSS: 98.98%
EPSS Percentile: 99.93%
CISA KEV: YES — Known Exploited Vulnerability

Description

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

Technical Details

CVSS Version: 3.1
CNA / NVD Source: cve@mitre.org
Published: 21-Jan-2026 14:16
Last Modified: 30-Sep-2026 18:47
EPSS Date: 2026-10-20
CWE: CWE-88

CVSS Vector


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

CISA KEV Details

Date Added: 2026-01-26
Remediation Due: 2026-02-16
Known Ransomware Campaign 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

Affected Products / Versions

gnu / inetutils
Version / affected range: * · from (inclusive) 1.9.3 · through (inclusive) 2.7
cpe:2.3:a:gnu:inetutils:*:*:*:*:*:*:*:*
debian / debian_linux
Version / affected range: 11.0
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

References

Last enrichment sync: 21-Oct-2026 15:16
Sources: NVD · FIRST EPSS · CISA KEV
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Reported Context (1)

vulnerability (CVSS 9.8 High) was blocked in only 11% of simulations, and the GNU InetUtils CVE-2026-24061 Picus Blue Report 2026 Finds Enterprise Defenses Block Just 37% of Post-Compromise Actions

CVE (9)

Malware (10)

Threat Actors (10)

MITRE ATT&CK (15)

Vendors (1)

Products (16)

Tools (3)

Industries (10)

Note: Related entities, including threat actors, malware, CVEs, MITRE ATT&CK techniques, vendors, products, tools, countries, and industries, are shown when they appear in the same reporting. Their presence does not necessarily mean they were targeted, compromised, vulnerable, responsible for the activity, or directly involved in the incident.