Home/CVE/telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service creden
CVE

CVE-2026-28372

telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service creden

telnetd in GNU inetutils through 2.7 allows privilege escalation that can be exploited by abusing systemd service credentials support added to the login(1) implementation of util-linux in release 2.40. This is related to client control over the CREDENTIALS_DIRECTORY environment variable, and requires an unprivileged local user to create a login.noauth file.

HIGH · CVSS 7.4 EPSS 9e-05
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-829Inclusion of Functionality from Untrusted Control Sphere
▤

Affected Products & Versions

1
gnu inetutils<= 2.7
⚠

Public Exploits & PoCs

1
poclists.gnu.org · msg00000.htmllists.gnu.org
▣

Scoring & Timeline

7.4
HIGH · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 Feb 2026 · 06:18 AM
CVSS VectorCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

8
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f98963883a798545ab9a6cPatch
https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00012.htmlMailing ListThird Party Advisory
https://www.openwall.com/lists/oss-security/2026/02/24/1Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/02/27/3Mailing ListThird Party Advisory
http://www.openwall.com/lists/oss-security/2026/03/06/2
http://www.openwall.com/lists/oss-security/2026/03/06/3
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