CVE-2026-42390

ZONEMD validation can be bypassed

Medium · published June 25, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
21.4
In the wild
Unconfirmed
What it is

An invalid zone might pass ZONEMD validation while it should not. This is only relevant if ZoneToCache is configured with ZONEMD validation.

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:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00299 · 21.4th percentile
Published
2026-06-25T13:01Z
EPSS history
Timeline
  • 25 JUN 13:01Z
    ZONEMD validation can be bypassed
    cvelistv5