SEPTEMBER 20, 2026
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Case File

CVE-2026-66374

HIGH · CVSS 8.1 EPSS 0.39% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-25 · Last synced 2026-08-24

CyberRota Analysis

AI-Generated

Knot Resolver versions prior to 6.4.1 are vulnerable to a heap-based buffer overflow in the DNS-over-QUIC (DoQ) receive path, which can be exploited for remote code execution. This vulnerability poses a significant risk to systems utilizing Knot Resolver, particularly those exposed to untrusted networks. Organizations using affected versions should prioritize patching to mitigate potential exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
remote code execution code execution
GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-66374
Severity
HIGH
CVSS
8.1
EPSS
0.39%

Original NVD 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.