CVE-2026-28372
HIGH EPSS 29.2%
Published Feb 27, 20264mo ago · Modified Jun 17, 20262w ago
7.8 CVSS 3.1
Published Feb 27, 2026 4mo ago
Last Modified Jun 17, 2026 2w ago
Description
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High
Threat Intelligence
EPSS Exploit Probability
29.2% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available
Weaknesses 1
CWE-829
Affected Products 1
| Vendor | Product | Version | Range |
|---|---|---|---|
| gnu | inetutils | * | ≤2.7 |
References 9
- openwall.com http://www.openwall.com/lists/oss-security/2026/02/27/3
- openwall.com http://www.openwall.com/lists/oss-security/2026/03/06/2
- openwall.com http://www.openwall.com/lists/oss-security/2026/03/06/3
- openwall.com http://www.openwall.com/lists/oss-security/2026/03/07/1
- openwall.com http://www.openwall.com/lists/oss-security/2026/03/07/2
- git.hadrons.org https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f98963883a798545ab9a6c
- lists.gnu.org https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00000.html
- lists.gnu.org https://lists.gnu.org/archive/html/bug-inetutils/2026-02/msg00012.html
- openwall.com https://www.openwall.com/lists/oss-security/2026/02/24/1
Remediation
- git.hadrons.org https://git.hadrons.org/cgit/debian/pkgs/inetutils.git/commit/?id=3953943d8296310485f98963883a798545ab9a6c