Risk Letters

Exploited vulnerability

CVE-2026-24061

TLP:CLEAR

GNU InetUtils Argument Injection Vulnerability

GNU InetUtils contains an argument injection vulnerability in telnetd that could allow for remote authentication bypass via a "-f root" value for the USER environment variable.

Facts

  • Vendor: GNU
  • Product: InetUtils
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 99 %
  • On CISA's Known Exploited Vulnerabilities list since: 26 January 2026
  • First known exploitation: 26 January 2026
  • CISA's deadline for US federal agencies: 16 February 2026
  • Weakness: CWE-88
  • First seen by Risk Letters: 26 January 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD