CVE-2026-35406CWE-400

Aardvark-dns has incorrect error handling for malformed tcp packets

Medium · published April 7, 2026

CVSS v3.1
6.2
EPSS
0%
Percentile
38.6
In the wild
Unconfirmed
What it is

Aardvark-dns is an authoritative dns server for A/AAAA container records. From 1.16.0 to 1.17.0, a truncated TCP DNS query followed by a connection reset causes aardvark-dns to enter an unrecoverable infinite error loop at 100% CPU. This vulnerability is fixed in 1.17.1.

The record
Technical detail
CVSS v3.1
6.2 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00456 · 38.6th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2026-04-07T21:32Z
EPSS history
Timeline
  • 07 APR 21:32Z
    Aardvark-dns has incorrect error handling for malformed tcp packets
    cvelistv5