CVE-2026-28372

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
7.4 HIGH
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
mitreCNA
7.4 HIGH
LOCAL
HIGH
NONE
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Common Weakness Enumeration
Vulnerability Media Exposure
References
https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f98963883a798545ab9a6c
https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00000.html
https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00012.html
https://www.openwall.com/lists/oss-security/2026/02/24/1