High severity7.5NVD Advisory· Published Jul 16, 2019· Updated Jun 17, 2026

CVE-2019-10191

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

Nic/Knot Resolver
cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
Range: <4.1.0
Fedoraproject/Fedora2 versions
cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
CZ.NIC/knot-resolverv5
Range: all before 4.1.0
Cz Nic/Knot Resolverllm-create
Range: <4.1.0

Patches

Vulnerability mechanics

References

bugzilla.redhat.com/show_bug.cginvdIssue TrackingThird Party Advisory
www.knot-resolver.cz/2019-07-10-knot-resolver-4.1.0.htmlnvdRelease NotesVendor Advisory
lists.debian.org/debian-lts-announce/2024/04/msg00017.htmlnvd
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMSSWBHINIX4WE6UDXWM66L7JYEK6XS6/nvd
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VZV5YZZ5766UIG2TFLFJL6EESQNAP5X5/nvd

News mentions

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cvss	0.488
epss	0.002
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000