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Vulnerability IntelligenceCVE-2026-66374

CVE-2026-66374

HIGH8.1

Knot Resolver before 6

Published Jul 25, 2026

Modified 2 weeks ago

Details

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

References

https://github.com/venglin/knot-doq

https://openwall.com/lists/oss-security/2026/07/23/6

https://www.cve.org/CVERecord?id=CVE-2026-66374

CVSS Analysis

CVSS v3.1

8.1

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

ChangedS:C

Impact

Confidentiality

LowC:L

Integrity

HighI:H

Availability

LowA:L

8.1/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedJul 25, 2026

ModifiedJul 27, 2026

CVE-2026-66374 | Mondoo Vulnerability Intelligence