CVE-2026-28372
HIGH 7.8EPSS 0.2%
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.
- Affected
- GNU · inetutils
- CVSS v3.1 NVD
- 7.8 HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 MITRE
- 7.4 HIGH
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS
- 0.20% chance of exploitation in the next 30 days, 10th percentile
- Published
- 2026-02-27
- Updated
- 2026-03-07
Proof-of-concept exploits (4)
- Rohitberiwala/CVE-2026-28372-telnetd-Privilege-Escalation1★ · 2026-03-07
- mbanyamer/CVE-2026-28372-GNU-inetutils-telnetd-Privilege-Escalation0★ · 2026-04-02
- kalibb/CVE-2026-28372-GNU-inetutils-telnetd-Privilege-Escalation-main0★ · 2026-02-28
- SafeBreach-Labs/ForgottenButNotGone10★ · 2026-08-03
Security advisories
- http://www.openwall.com/lists/oss-security/2026/02/27/3
- 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
- https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f9896…