CVE-2026-24061
inetutils-syslogd: telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environme...
CVE-2026-24061 is fixed in 14 products on 1 platform, first by inetutils-ftp 2:1.9.4-3ubuntu0.1+esm4, released January 20, 2026. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on January 26, 2026. Patch Radar priority: Patch now.
Patch nowCISA KEV
CVSS
9.8
High
Exploitation
Exploited
Listed by CISA
CISA KEV
Jan 26, 2026
Federal due date Feb 16, 2026
EPSS
0.9898
99th percentile
telnetd in GNU Inetutils through 2.7 allows remote authentication bypass via a "-f root" value for the USER environment variable.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| inetutils · Debian 11.6 (bullseye) | 2:2.0-1+deb11u3 | DLA-4453-1 | Jan 25, 2026 |
| inetutils · Debian 12.15 (bookworm) | 2:2.4-2+deb12u2 | DSA-6106-1 | Jan 22, 2026 |
| inetutils · Debian 13.5 (trixie) | 2:2.6-3+deb13u1 | DSA-6106-1 | Jan 22, 2026 |
| inetutils · Debian 14 | 2:2.7-2 | DEBIAN-CVE-2026-24061 | Jan 21, 2026 |
| inetutils-ftp · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-ftp 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-ftp · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-ftp 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-ftp · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-ftp 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-ftp · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-ftp 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-ftp · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-ftp 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-ftpd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-ftpd 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-ftpd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-ftpd 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-ftpd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-ftpd 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-ftpd · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-ftpd 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-ftpd · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-ftpd 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-inetd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-inetd 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-inetd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-inetd 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-inetd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-inetd 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-inetd · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-inetd 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-inetd · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-inetd 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-ping · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-ping 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-ping · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-ping 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-ping · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-ping 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-ping · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-ping 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-ping · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-ping 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-syslogd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-syslogd 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-syslogd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-syslogd 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-syslogd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-syslogd 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-syslogd · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-syslogd 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-syslogd · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-syslogd 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-talk · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-talk 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-talk · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-talk 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-talk · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-talk 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-talk · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-talk 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-talk · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-talk 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-talkd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-talkd 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-talkd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-talkd 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-talkd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-talkd 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-talkd · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-talkd 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-talkd · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-talkd 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-telnet · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-telnet 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-telnet · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-telnet 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-telnet · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-telnet 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-telnet · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-telnet 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-telnet · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-telnet 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-telnetd · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-telnetd 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-telnetd · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-telnetd 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-telnetd · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-telnetd 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-telnetd · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-telnetd 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-telnetd · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-telnetd 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-tools · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-tools 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-tools · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-tools 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-tools · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-tools 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-tools · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-tools 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-tools · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-tools 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| inetutils-traceroute · Ubuntu 18.04.6 LTS (bionic) | 2:1.9.4-3ubuntu0.1+esm4 | inetutils-traceroute 2:1.9.4-3ubuntu0.1+esm4 | Jan 20, 2026 |
| inetutils-traceroute · Ubuntu 20.04 LTS (focal) | 2:1.9.4-11ubuntu0.2+esm3 | inetutils-traceroute 2:1.9.4-11ubuntu0.2+esm3 | Jan 20, 2026 |
| inetutils-traceroute · Ubuntu 22.04.1 LTS (jammy) | 2:2.2-2ubuntu0.2 | inetutils-traceroute 2:2.2-2ubuntu0.2 | Jan 20, 2026 |
| inetutils-traceroute · Ubuntu 24.04.5 LTS (noble) | 2:2.5-3ubuntu4.1 | inetutils-traceroute 2:2.5-3ubuntu4.1 | Jan 20, 2026 |
| inetutils-traceroute · Ubuntu 25.10 (questing) | 2:2.6-1ubuntu3.1 | inetutils-traceroute 2:2.6-1ubuntu3.1 | Jan 20, 2026 |
| telnet · Ubuntu 24.04.5 LTS (noble) | 0.17+2.5-3ubuntu4.1 | telnet 0.17+2.5-3ubuntu4.1 | Jan 20, 2026 |
| telnet · Ubuntu 25.10 (questing) | 0.17+2.6-1ubuntu3.1 | telnet 0.17+2.6-1ubuntu3.1 | Jan 20, 2026 |
| telnetd · Ubuntu 24.04.5 LTS (noble) | 0.17+2.5-3ubuntu4.1 | telnetd 0.17+2.5-3ubuntu4.1 | Jan 20, 2026 |
| telnetd · Ubuntu 25.10 (questing) | 0.17+2.6-1ubuntu3.1 | telnetd 0.17+2.6-1ubuntu3.1 | Jan 20, 2026 |
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