CVE-2026-66374

8.1 HIGH

Published: July 25, 2026 Modified: July 25, 2026

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.

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0.0 Low Medium High Critical 10.0

Vector String

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L

Patch Vendor Advisory Exploit Third Party Advisory

Source: cve@mitre.org

Source: cve@mitre.org

2 reference(s) from NVD

CVSS v3 Score

8.1 / 10.0

Exploitation Status

Not in CISA KEV

CWE-1284