CVE-2019-16866

HIGH

Unbound <1.9.4 - Memory Corruption

Title source: llm

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.

References (7)

Scores

CVSS v3 7.5
EPSS 0.0125
EPSS Percentile 79.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE
CWE-755 CWE-908
Status published

Affected Products (2)

nlnetlabs/unbound < 1.9.4
canonical/ubuntu_linux

Timeline

Published Oct 03, 2019
Tracked Since Feb 18, 2026