UnratedRed Hat & Ubuntu Linux

Kea DHCP vulnerability

USN-8403-1 Published Jun 8, 2026

CVE-2026-3608

Affected products & platforms

Red Hat & Ubuntu LinuxUnclassified

Summary

Ali Norouzi discovered that Kea DHCP did not properly handle maliciously crafted messages over configured API sockets and HA listeners. A remote attacker could possibly use this issue to cause Kea DHCP to crash, resulting in a denial of service. Affected Ubuntu releases: 25.10, 24.04. CVEs: CVE-2026-3608.

Affected versions

Ubuntu 25.10
Ubuntu 24.04

Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Apply available updates: `sudo apt update && sudo apt upgrade` (a standard system update installs the fix).

Official advisory · medium-confidence parse· fetched 3 hours ago·verify at source

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