CVE Catalog

CVE-2026-66374

HighCVSS 8.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.39%

32th percentile - higher than 32% of all known CVEs

Summary

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

Risk Assessment

Organizations using Knot Resolver are at risk of remote code execution by an attacker sending crafted DoQ queries.

Recommendation

Update Knot Resolver to version 6.4.1 or later.

Related vulnerabilities

Original NVD description (English source)

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

Vulnerability data from NVD (NIST) · CISA KEV · EPSS