CVE-2026-66374

—

CVSS 3.1

8.1 high

EPSS

<1%p41

Published

Jul 25, 2026 (Jul 25, 2026)

Modified

Jul 30, 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.

Weakness: CWE-1284
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L

NVD CVE.org GitHub PoCs EPSS (0.5%)

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