CVE-2026-0398

Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor

Medium · published February 9, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
26.9
In the wild
Unconfirmed
What it is

Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS v4.0
Not supplied
EPSS
0.00345 · 26.9th percentile
Published
2026-02-09T14:20Z
EPSS history
Timeline
  • 09 FEB 14:20Z
    Crafted zones can lead to increased resource usage and crafted CNAME chains can lead to cache poisoning in Recursor
    cvelistv5