Inetutils vulnerabilities
Summary
It was discovered that the Inetutils telnet daemon incorrectly handled the CREDENTIALS_DIRECTORY environment variable. An attacker could possibly use this issue to escalate privileges. (CVE-2026-28372) It was discovered that the Inetutils telnet daemon did not properly validate buffer bounds when processing LINEMODE SLC suboptions. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2026-32746) It was discovered that the Inetutils telnet client incorrectly handled the NEW_ENVIRON SEND USERVAR option. An attacker could possibly use this issue to read arbitrary environment variables. (CVE-2026-32772) Affected Ubuntu releases: 26.04, 25.10, 24.04, 22.04, 20.04, 18.04, 16.04, 14.04. CVEs: CVE-2026-32746, CVE-2026-32772, CVE-2026-28372.
- Ubuntu 26.04
- Ubuntu 25.10
- Ubuntu 24.04
- Ubuntu 22.04
- Ubuntu 20.04
- Ubuntu 18.04
- Ubuntu 16.04
- Ubuntu 14.04
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Apply available updates: `sudo apt update && sudo apt upgrade` (a standard system update installs the fix).
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
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