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7.5 High

CVE-2025-40779 If a DHCPv4 client sends a request with some specific options, and Kea fails to find an appropriate subnet for the…

Description

If a DHCPv4 client sends a request with some specific options, and Kea fails to find an appropriate subnet for the client, the `kea-dhcp4` process will abort with an assertion failure. This happens only if the client request is unicast directly to Kea; broadcast messages do not cause the problem. This issue affects Kea versions 2.7.1 through 2.7.9, 3.0.0, and 3.1.0.

Affected products and versions

Product Affected versions Fixed in
Kea 3.1.0 No fix stated
Kea 3.0.0 No fix stated
Kea 2.7 2.7.1 → 2.7.9 No fix stated
Kea 2.6 earliest → < 2.6.0 2.6.0

References

Timeline

  1. Published
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