CVE-2026-33612

HIGH

ZoneToCache can poison the cache

Title source: CVE List
STIX 2.1 vulnerability

Record summary

CVE-2026-33612 has a selected CVSS score of 7.5 (high).

Description

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.

Description source: CVE List

Exploitation context

CISA SSVC decision

ExploitationNone
AutomatableNo
Technical impactPartial

CISA Coordinator · SSVC 2.0.3 · Evaluated Jun 25, 2026 · Source: CVE List

Affected products and versions

1
ProductSourceVersion range

Recursor

Browse PowerDNS / Recursorpdns-recursor

Default status: unaffected

CVE List5.2.0 to < 5.2.11affected
5.3.0 to < 5.3.8affected
5.4.0 to < 5.4.3affected

References

2