CVE-2026-24061
Remote authentication bypass in telnetd (GNU Inetutils <=2.7) via USER env var (-f root).
Is CVE-2026-24061 being exploited?
Yes. CVE-2026-24061 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.
How severe is CVE-2026-24061?
CVE-2026-24061 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-24061?
Yes. A fix has been recorded for CVE-2026-24061. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-24061 affect?
CVE-2026-24061 affects telnetd (GNU Inetutils <= 2.7). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-24061?
Patch inetutils upgrade to latest; restart telnetd
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Remote authentication bypass enabling unauthenticated root login via telnetd, leading to full system compromise.
Immediate action required
- affected>= 1.9.3 and <= 2.7
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.