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CVE-2026-3608 · cross-distro fix matrix

CVE-2026-3608: Ali Norouzi discovered that Kea DHCP did not properly handle maliciously

Affects 3 Linux releases across 23 (distro × package) combinations. First disclosed: 2026-06-08.

Fix per ecosystem

Each block below is a distro release where CVE-2026-3608 has a known fix. Run the listed command on that distro to remediate.

Ubuntu noble

Source: Ubuntu USN

  • isc-kea→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y isc-kea
  • kea→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea
  • kea-admin→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-admin
  • kea-common→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-common
  • kea-ctrl-agent→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-ctrl-agent
  • kea-dev→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dev
  • kea-dhcp-ddns-server→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dhcp-ddns-server
  • kea-dhcp4-server→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dhcp4-server
  • kea-dhcp6-server→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dhcp6-server
  • kea-doc→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y kea-doc
  • python3-kea-connector→ fixed in2.4.1-3ubuntu0.2USN-8403-1
    sudo apt-get install --only-upgrade -y python3-kea-connector

Ubuntu questing

Source: Ubuntu USN

  • isc-kea→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y isc-kea
  • kea→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea
  • kea-admin→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-admin
  • kea-common→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-common
  • kea-ctrl-agent→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-ctrl-agent
  • kea-dev→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dev
  • kea-dhcp-ddns-server→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dhcp-ddns-server
  • kea-dhcp4-server→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dhcp4-server
  • kea-dhcp6-server→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-dhcp6-server
  • kea-doc→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y kea-doc
  • python3-kea-connector→ fixed in2.6.3-2ubuntu0.1USN-8403-1
    sudo apt-get install --only-upgrade -y python3-kea-connector

Alpine edge

Source: Alpine secdb

  • kea→ fixed in3.0.3-r0
    apk update && apk add --upgrade kea
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