CVE-2019-10191

HIGH

knot_resolver < 4.1.0 - DNSSEC Downgrade via Improper Input Validation

Title source: llm
STIX 2.1

Description

A vulnerability was discovered in DNS resolver of knot resolver before version 4.1.0 which allows remote attackers to downgrade DNSSEC-secure domains to DNSSEC-insecure state, opening possibility of domain hijack using attacks against insecure DNS protocol.

References (5)

Core 5

Scores

CVSS v3 7.5
EPSS 0.0193
EPSS Percentile 77.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Details

CWE
CWE-20
Status published
Products (3)
fedoraproject/fedora 29
fedoraproject/fedora 30
nic/knot_resolver < 4.1.0
Published Jul 16, 2019
Tracked Since Feb 18, 2026