CVE-2019-6473

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

MEDIUM
6.5
CVSS Score
Published: October 16, 2019 at 05:22 PM UTC
Updated: June 17, 2026 at 02:39 AM UTC
1 product affected across 1 vendorKea

Using Kea by ISC?

Get instant alerts when new vulnerabilities affect Kea - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

1.4.0 ≤ v ≤ 1.5.01.6.0 beta11.6.0 beta21.6.0-beta11.6.0-beta2

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
https://kb.isc.org/docs/cve-2019-6473

CVSS

6.5MEDIUMisc
Attack Vector
ADJACENT_NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-617

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card