What is CVE-2026-33610?

CVE-2026-33610 is a medium-severity vulnerability in Powerdns Authoritative. CVSS score: 5.9/10. Published 2026-04-22.

How severe is CVE-2026-33610?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Powerdns Authoritative

CVE-2026-33610

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.

EPSS: 0.000 (0.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Powerdns Authoritative — versions 5.0.0, 4.9.0

References

docs.powerdns.com/authoritative/security-advisories/powerdns-advisory-powerdns-…

Frequently asked questions

What is CVE-2026-33610?: CVE-2026-33610 is a medium-severity vulnerability in Powerdns Authoritative. CVSS score: 5.9/10. Published 2026-04-22.
How severe is CVE-2026-33610?: Medium severity. CVSS v3 base score is 5.9 out of 10.