CVE-2026-66374
CVSS Score
8.1
EPSS Score
0.0%
EPSS Percentile
0th
Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path.
| CWE | CWE-1284 |
| Vendor | nic |
| Product | knot resolver |
| Published | Jul 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
High
Availability
Low
Affected Versions
nic / Knot Resolver
0 < 6.4.1