Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Sun, 02 Aug 2026 14:15:00 +0000

Type Values Removed Values Added
Title Knot Resolver Heap Buffer Overflow in DoQ Receive Path

Sat, 01 Aug 2026 03:00:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via DoQ Heap Buffer Overflow in Knot Resolver

Mon, 27 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sun, 26 Jul 2026 03:15:00 +0000

Type Values Removed Values Added
Title Remote Code Execution via DoQ Heap Buffer Overflow in Knot Resolver

Sat, 25 Jul 2026 01:00:00 +0000

Type Values Removed Values Added
Description Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
First Time appeared Nic
Nic knot Resolver
Weaknesses CWE-1284
CPEs cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
Vendors & Products Nic
Nic knot Resolver
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L'}


Projects

Sign in to view the affected projects.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-27T14:36:16.215Z

Reserved: 2026-07-25T00:28:33.968Z

Link: CVE-2026-66374

cve-icon Vulnrichment

Updated: 2026-07-27T14:36:11.611Z

cve-icon NVD

Status : Deferred

Published: 2026-07-25T01:16:26.423

Modified: 2026-07-30T19:32:25.133

Link: CVE-2026-66374

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-03T19:45:07Z

Weaknesses