CVE-2026-33610

Possible file descriptor exhaustion in forward-dnsupdate

Medium · published April 22, 2026

CVSS v3.1
5.9
EPSS
1%
Percentile
53.8
In the wild
Unconfirmed
What it is

A rogue primary server may cause file descriptor exhaustion and eventually a denial of service, when a PowerDNS secondary server forwards a DNS update request to it.

The record
Technical detail
CVSS v3.1
5.9 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00731 · 53.8th percentile
Published
2026-04-22T14:00Z
EPSS history
Timeline
  • 22 APR 14:00Z
    Possible file descriptor exhaustion in forward-dnsupdate
    cvelistv5