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CVE-2026-28372

CVE-2026-28372

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 7.4 · High · EPSS 0.2% · Public exploit · Fix available

Published
Updated

Stack: system

Affected products and versions

  • inetutils

    Versions
    • ≥ 0, ≤ 2.7: Affected (custom)

    No fix published

  • inetutils Debian:12

    Versions
    • 2:2.4-2
    • 2:2.4-2+deb12u1
    • 2:2.4-2+deb12u2
    Affected ranges
    • ECOSYSTEM: < 2:2.4-2+deb12u3

    Update to 2:2.4-2+deb12u3

  • inetutils Debian:13

    Versions
    • 2:2.6-3
    • 2:2.6-3+deb13u1
    Affected ranges
    • ECOSYSTEM: < 2:2.6-3+deb13u2

    Update to 2:2.6-3+deb13u2

  • inetutils Debian:14

    Versions
    • 2:2.6-3
    • 2:2.6-4
    • 2:2.7-1
    • 2:2.7-2
    Affected ranges
    • ECOSYSTEM: < 2:2.7-3

    Update to 2:2.7-3

  • inetutils Ubuntu:Pro:14.04:LTS

    Versions
    • 2:1.9.1.306-0a482-1
    • 2:1.9.1.363-bbc1-1
    • 2:1.9.2-1
    • 2:1.9.2-1ubuntu0.1~esm1
    • 2:1.9.2-1ubuntu0.1~esm2
    Affected ranges
    • ECOSYSTEM: < 2:1.9.2-1ubuntu0.1~esm4

    Update to 2:1.9.2-1ubuntu0.1~esm4

  • inetutils Ubuntu:Pro:16.04:LTS

    Versions
    • 2:1.9.4-1
    • 2:1.9.4-1build1
    • 2:1.9.4-1ubuntu0.1~esm1
    • 2:1.9.4-1ubuntu0.1~esm2
    • 2:1.9.4-1ubuntu0.1~esm3
    • 2:1.9.4-1ubuntu0.1~esm5
    Affected ranges
    • ECOSYSTEM: < 2:1.9.4-1ubuntu0.1~esm6

    Update to 2:1.9.4-1ubuntu0.1~esm6

  • inetutils Ubuntu:Pro:18.04:LTS

    Versions
    • 2:1.9.4-2build1
    • 2:1.9.4-3
    • 2:1.9.4-3ubuntu0.1
    • 2:1.9.4-3ubuntu0.1+esm1
    • 2:1.9.4-3ubuntu0.1+esm2
    • 2:1.9.4-3ubuntu0.1+esm4
    Affected ranges
    • ECOSYSTEM: < 2:1.9.4-3ubuntu0.1+esm5

    Update to 2:1.9.4-3ubuntu0.1+esm5

  • inetutils Ubuntu:Pro:20.04:LTS

    Versions
    • 2:1.9.4-10build1
    • 2:1.9.4-11
    • 2:1.9.4-11ubuntu0.1
    • 2:1.9.4-11ubuntu0.1+esm1
    • 2:1.9.4-11ubuntu0.2
    • 2:1.9.4-11ubuntu0.2+esm1
    • 2:1.9.4-11ubuntu0.2+esm3
    Affected ranges
    • ECOSYSTEM: < 2:1.9.4-11ubuntu0.2+esm4

    Update to 2:1.9.4-11ubuntu0.2+esm4

  • inetutils Ubuntu:Pro:22.04:LTS

    Versions
    • 2:2.0-1
    • 2:2.2-2
    • 2:2.2-2ubuntu0.1
    • 2:2.2-2ubuntu0.2
    Affected ranges
    • ECOSYSTEM: < 2:2.2-2ubuntu0.2+esm1

    Update to 2:2.2-2ubuntu0.2+esm1

  • inetutils Ubuntu:24.04:LTS

    Versions
    • 2:2.4-2ubuntu2
    • 2:2.4-3ubuntu1
    • 2:2.5-3ubuntu1
    • 2:2.5-3ubuntu3
    • 2:2.5-3ubuntu4
    • 2:2.5-3ubuntu4.1
    Affected ranges
    • ECOSYSTEM: < 2:2.5-3ubuntu4.2

    Update to 2:2.5-3ubuntu4.2

  • inetutils Ubuntu:25.10

    Versions
    • 2:2.5-6ubuntu1
    • 2:2.6-1ubuntu1
    • 2:2.6-1ubuntu3
    • 2:2.6-1ubuntu3.1
    Affected ranges
    • ECOSYSTEM: < 2:2.6-1ubuntu3.2

    Update to 2:2.6-1ubuntu3.2

  • inetutils Ubuntu:26.04:LTS

    Versions
    • 2:2.6-1ubuntu3
    • 2:2.6-4ubuntu1
    • 2:2.7-2ubuntu1
    Affected ranges
    • ECOSYSTEM: < 2:2.7-2ubuntu1.1

    Update to 2:2.7-2ubuntu1.1

Original sources

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