CVE-2026-28372

EUVD-2026-9000
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
Base Score
CVSS 3.x
EPSS Score
Percentile: 30.06%
Affected Products (NVD)
VendorProductVersion
gnuinetutils
𝑥
≤ 2.7
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
inetutils
bookworm
2:2.4-2+deb12u3
fixed
bookworm (security)
2:2.4-2+deb12u3
fixed
bullseye
vulnerable
bullseye (security)
2:2.0-1+deb11u4
fixed
forky
2:2.8-3
fixed
sid
2:2.8-3
fixed
trixie
2:2.6-3+deb13u3
fixed
trixie (security)
2:2.6-3+deb13u3
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
inetutils
bionic
Fixed 2:1.9.4-3ubuntu0.1+esm5
released
focal
Fixed 2:1.9.4-11ubuntu0.2+esm4
released
jammy
Fixed 2:2.2-2ubuntu0.2+esm1
released
noble
Fixed 2:2.5-3ubuntu4.2
released
questing
Fixed 2:2.6-1ubuntu3.2
released
resolute
Fixed 2:2.7-2ubuntu1.1
released
trusty
Fixed 2:1.9.2-1ubuntu0.1~esm4
released
xenial
Fixed 2:1.9.4-1ubuntu0.1~esm6
released
Common Weakness Enumeration
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
http://www.openwall.com/lists/oss-security/2026/02/27/3
http://www.openwall.com/lists/oss-security/2026/03/06/2
http://www.openwall.com/lists/oss-security/2026/03/06/3
http://www.openwall.com/lists/oss-security/2026/03/07/1
http://www.openwall.com/lists/oss-security/2026/03/07/2