CVE & CISA-KEV Catalog

CVE-2026-24061

CRITICALCISA KEVEPSS 100th pctl
9.8
CVSS v3
NVD

Description

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

CWE-88

How to fix

Remediation Available
inetutilsDebian
Fixed in:2:2.0-1+deb11u4CVE-2026-24061
Fixed in:2:2.4-2+deb12u2CVE-2026-24061
Fixed in:2:2.6-3+deb13u1CVE-2026-24061
Fixed in:2:2.7-2CVE-2026-24061
inetutilsUbuntu
Fixed in:2:1.9.4-1ubuntu0.1~esm5USN-7992-2
Fixed in:2:1.9.4-3ubuntu0.1+esm4USN-7992-2
Fixed in:2:1.9.4-11ubuntu0.2+esm3USN-7992-2
Fixed in:2:2.2-2ubuntu0.2USN-7992-1
Fixed in:2:2.5-3ubuntu4.1USN-7992-1
Fixed in:2:2.6-1ubuntu3.1USN-7992-1
inetutils-telnetdUbuntu
Fixed in:2:1.9.4-1ubuntu0.1~esm5USN-7992-2
Fixed in:2:1.9.4-3ubuntu0.1+esm4USN-7992-2
Fixed in:2:1.9.4-11ubuntu0.2+esm3USN-7992-2
Fixed in:2:2.2-2ubuntu0.2USN-7992-1
Fixed in:2:2.5-3ubuntu4.1USN-7992-1
Fixed in:2:2.6-1ubuntu3.1USN-7992-1

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

97.88%probability of exploitation in 30 days
100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Remediation due: 2026-02-16

References

Vendor Advisory1
Mitigation1
Government Resource1
Product1

Related Vulnerabilities

Other CWE-88 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2016-10033Critical9.8100%KEVFix
CVE-2022-36804High8.899%KEVFix
CVE-2007-0882High10.098%--
CVE-2018-17456Critical9.897%-Fix
CVE-2018-19518High7.595%-Fix
CVE-2021-33564Critical9.872%-Fix

Common questions

How do I fix CVE-2026-24061?

Published advisories record a fix for 3 affected products. The "How to fix" section on this page lists the fixed version and source advisory for each one, so apply the entry matching what you actually run.

Is CVE-2026-24061 being actively exploited?

Yes. CVE-2026-24061 is listed in the CISA Known Exploited Vulnerabilities catalog, which means exploitation has been observed in the wild. US federal agencies were required to remediate it by 2026-02-16. Treat it as a priority whatever its CVSS score says.

How severe is CVE-2026-24061?

CVE-2026-24061 has a CVSS v3 base score of 9.8, rated critical. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-24061 affect?

Published advisories record a fix for inetutils (Debian), inetutils (Ubuntu), inetutils-telnetd (Ubuntu). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-02-11.