CVE-2026-66374CWE-1284

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

High · published July 25, 2026

CVSS v3.1
8.1
EPSS
1%
Percentile
49.3
In the wild
Unconfirmed
What it is

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

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.00624 · 49.3th percentile
Weakness
CWE-1284 · Improper Validation of Specified Quantity in Input
Published
2026-07-25T00:28Z
EPSS history
Timeline
  • 25 JUL 00:28Z
    Knot Resolver before 6.4.1 allows remote code execution via a heap-based buffer overflow in the DoQ (DNS-over-QUIC) receive path
    cvelistv5