CVE-2026-24061

criticalpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.990 · 100 %ileexploit · weaponizedDEEUNLRUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 71 exploits · weaponized

Likely / severe?

99.0% (100th) EPSS

CVSS 9.8 · critical

Is it mine?

17 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

added 2026-01-26remediate by 2026-02-16

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.

EPSS · scored 2026-10-22

GNU 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.

cvss

Technical severity, 0–10. One row per scoring source.

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · cve@mitre.org USexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · NCSC-NL NL

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-88USCWE-88USCWE-88US

exploits (71)

Public proof-of-concept and weaponised exploit code.

exploit/linux/telnet/gnu_inetutils_auth_bypassGNU Inetutils Telnet Authentication Bypass Exploit CVE-2026-24061weaponized · metasploit
EDB-52524GNU InetUtils 2.6 - Telnetd Remote Privilege EscalationPoC · exploit_db
0p5cur/CVE-2026-24061-POCCVE-2026-24061's poc : a critical authentication bypass in telnetd leading to RCE as root Affects systems with telnetd versions containing the vulnerability from 2015 onwards.PoC · poc_in_github
0x7556/CVE-2026-24061CVE-2026-24061 Telnet RCE Exploit For Linux MacOS WindowsPoC · poc_in_github
0xBlackash/CVE-2026-24061CVE-2026-24061PoC · poc_in_github
Alter-N0X/CVE-2026-24061-POCCVE-2026-24061 - GNU InetUtils telnetd authentication bypass POC + Docker lab environment for testing PoC · poc_in_github

affected products (17)

Products and version ranges known to be affected.

Debian Linuxall versionscert_bundDEcpe:/o:debian:debian_linux:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
IGEL OSall versionscert_bundDEcpe:/o:igel:os:-
Meinberg LANTIME <7.10.009all versionscert_bundDE
Open Source InetUtils <=2.7all versionscert_bundDE
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Meinberg LANTIME< 7.10.009cert_bundDE
Open Source InetUtils≤ 2.7cert_bundDE
GNU Inetutils≤ 1.9.3 ≤2.7enisa_euvdEU
Free Software Foundation, Inc. Inetutils1.9.3 → 2.7fstec_bduRU
АО «НППКТ» ОСОН ОСнова 3 Оnyx≤ 3.2fstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.15fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 1.8fstec_bduRU
ООО «РусБИТех-Астра» Astra Linux Special Edition≤ 3.8fstec_bduRU
GNU Inetutils≤ vers:unknown/*ncsc_nlNL
debian debian linux= 11.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
gnu inetutils1.9.3 → 2.7nvdUScpe:2.3:a:gnu:inetutils:*:*:*:*:*:*:*:*

advisories (2)

Vendor and ecosystem advisories describing this.

NCSC-2026-0033Kwetsbaarheid verholpen in GNU Inetutils telnetdNL2026-01-21csaf · ncsc_nlNL
Beveiligingsonderzoekers hebben een een kwetsbaarheid aangetroffen in Inetutils telnetd (versie 2.7). Deze kwetsbaarheid is volgens de onderzoekers al aanwezig sinds versie 1.9.3 die uit is gekomen in 2015.
WID-SEC-W-2026-0183InetUtils (telnetd): Schwachstelle ermöglicht Erlangen von AdministratorrechtenDeutsch2026-01-20csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle im "telnetd" der InetUtils ausnutzen, um die Authentifizierung zu umgehen und Root-Zugriff zu erlangen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl nvd NVD CVE.org MITRE

published 2026-01-21modified 2026-09-30

references (29)

External citations — patches, advisories, analysis.

scry

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