7.5

CVE-2025-40779

Kea crash upon interaction between specific client options and subnet selection

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerISC
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Produkt Kea
Default Statusunaffected
Version <= 2.7.9
Version 2.7.1
Status affected
Version 3.0.0
Status affected
Version 3.1.0
Status affected
Version <= 2.6.4
Version 2.6.0
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.08% 0.237
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-officer@isc.org 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.