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CVE-2026-66374 (GCVE-0-2026-66374)

Vulnerability from cvelistv5 – Published: 2026-07-25 00:28 – Updated: 2026-07-27 14:36
VLAI
Summary
Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 14:35 UTC
CWE
  • CWE-1284 - Improper Validation of Specified Quantity in Input
Assigner
References
Impacted products
Vendor Product Version CPE status
nic Knot Resolver Affected: 0 , < 6.4.1 (semver)
    cpe:2.3:a:nic:knot_resolver:*:*:*:*:*:*:*:*
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