A packet containing a malformed DUID can cause the kea-dhcp6 server to terminate

Published 7 y ago 2019-10-16 · modified 4 mo ago 2026-06-17 · JSON

CVSS

6.5

v3.1 · CNA

CISA KEV

not known exploited

EPSS

1.2%

percentile 68%

Public exploits

none known

An invalid hostname option can trigger an assertion failure in the Kea DHCPv4 server process (kea-dhcp4), causing the server process to exit. Versions affected: 1.4.0 to 1.5.0, 1.6.0-beta1, and 1.6.0-beta2.

Exploit prediction (EPSS)

1.17% probability of exploitation in the next 30 days, higher than 68% of all scored CVEs.

CVSS scores

Assigned by	Version	Score	Vector
CNA	3.1	6.5	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
CNA	3.1	6.5	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
NVD	3.1	6.5	`CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H`
NVD	2.0	3.3	`AV:A/AC:L/Au:N/C:N/I:N/A:P`

Affected products

ISC Kea

Classification

Weakness

CWE-617 Reachable Assertion

References

kb.isc.org /docs/cve-2019-6473 · x_refsource_CONFIRM, x_transferred

Sources

CVE List: CVE-2019-6473
NVD: CVE-2019-6473

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