CVE-2026-28372 · cross-distro fix matrix

CVE-2026-28372: It was discovered that the Inetutils telnet daemon incorrectly handled

Affects 4 Linux releases across 50 (distro × package) combinations. First disclosed: 2026-06-04.

Fix per ecosystem

Each block below is a distro release where CVE-2026-28372 has a known fix. Run the listed command on that distro to remediate.

Ubuntu bionic

Source: Ubuntu USN

inetutils→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils
```
inetutils-ftp→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ftp
```
inetutils-ftpd→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ftpd
```
inetutils-inetd→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-inetd
```
inetutils-ping→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ping
```
inetutils-syslogd→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-syslogd
```
inetutils-talk→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-talk
```
inetutils-talkd→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-talkd
```
inetutils-telnet→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-telnet
```
inetutils-telnetd→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-telnetd
```
inetutils-tools→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-tools
```
inetutils-traceroute→ fixed in2:1.9.4-3ubuntu0.1+esm5USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-traceroute
```

Ubuntu focal

Source: Ubuntu USN

inetutils→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils
```
inetutils-ftp→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ftp
```
inetutils-ftpd→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ftpd
```
inetutils-inetd→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-inetd
```
inetutils-ping→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ping
```
inetutils-syslogd→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-syslogd
```
inetutils-talk→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-talk
```
inetutils-talkd→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-talkd
```
inetutils-telnet→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-telnet
```
inetutils-telnetd→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-telnetd
```
inetutils-tools→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-tools
```
inetutils-traceroute→ fixed in2:1.9.4-11ubuntu0.2+esm4USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-traceroute
```

Ubuntu jammy

Source: Ubuntu USN

inetutils→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils
```
inetutils-ftp→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ftp
```
inetutils-ftpd→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ftpd
```
inetutils-inetd→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-inetd
```
inetutils-ping→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-ping
```
inetutils-syslogd→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-syslogd
```
inetutils-talk→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-talk
```
inetutils-talkd→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-talkd
```
inetutils-telnet→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-telnet
```
inetutils-telnetd→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-telnetd
```
inetutils-tools→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-tools
```
inetutils-traceroute→ fixed in2:2.2-2ubuntu0.2+esm1USN-8387-1
```
sudo apt-get install --only-upgrade -y inetutils-traceroute
```

Ubuntu noble

Source: Ubuntu USN

inetutils→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils

inetutils-ftp→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-ftp

inetutils-ftpd→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-ftpd

inetutils-inetd→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-inetd

inetutils-ping→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-ping

inetutils-syslogd→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-syslogd

inetutils-talk→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-talk

inetutils-talkd→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-talkd

inetutils-telnet→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-telnet

inetutils-telnetd→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-telnetd

inetutils-tools→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-tools

inetutils-traceroute→ fixed in2:2.5-3ubuntu4.2USN-8387-1

sudo apt-get install --only-upgrade -y inetutils-traceroute

telnet→ fixed in0.17+2.5-3ubuntu4.2USN-8387-1
```
sudo apt-get install --only-upgrade -y telnet
```
telnetd→ fixed in0.17+2.5-3ubuntu4.2USN-8387-1
```
sudo apt-get install --only-upgrade -y telnetd
```

Are YOU affected by CVE-2026-28372?

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