CVE-2026-33258

Crafted zones can cause increased resource usage

Medium · published April 22, 2026

CVSS v3.1
5.3
EPSS
1%
Percentile
56.2
In the wild
Unconfirmed
What it is

By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC(3) caches.

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
0.00801 · 56.2th percentile
Published
2026-04-22T09:38Z
EPSS history
Timeline
  • 22 APR 09:38Z
    Crafted zones can cause increased resource usage
    cvelistv5