CVE-2019-16866

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CVSS 3.1

7.5 high

EPSS

4%p88

Published

Oct 3, 2019 (Oct 3, 2019)

Modified

Jun 17, 2026

Description

Unbound before 1.9.4 accesses uninitialized memory, which allows remote attackers to trigger a crash via a crafted NOTIFY query. The source IP address of the query must match an access-control rule.

Vendors: nlnetlabs canonical
Products: unbound, ubuntu linux
Weakness: CWE-755, CWE-908
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NVD CVE.org GitHub PoCs EPSS (3.5%)

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