CVE-2026-28372
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.4% in the next 30 days (EPSS).
- Severity: 7.4 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.4% · EPSS, next 30 days
- Weakness
- CWE-829
- Record status
- Modified
Affected
- Gnu Inetutils ≤ 2.7
Attack profile CVSS 3.1 · 7.4
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-28372.md and follow it. Check whether this project is affected by CVE-2026-28372. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
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