CVE-2026-33612: high-severity vulnerability in PowerDNS Recursor
ZoneToCache can poison the cache
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.1%
exploitation probability
0.1%top 96% of all CVEs
observed exploitation
nono source reports it
A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L
Affected products
PowerDNS · RecursorRelated CVEs — PowerDNS Recursor
In the same product, most dangerous first.
CVE-2026-33260MEDIUMInsufficient input validation of internal webserverEPSS 1.1%CVE-2026-33257MEDIUMInsufficient input validation of internal webserverEPSS 1.1%CVE-2024-25583HIGHCrafted responses can lead to a denial of service in Recursor if recursive forwarding is configuredEPSS 0.8%CVE-2026-33258MEDIUMCrafted zones can cause increased resource usageEPSS 0.8%CVE-2026-33256MEDIUMUnbounded memory allocation by internal web serverEPSS 0.8%CVE-2025-30195HIGHA crafted zone can lead to an illegal memory access in the PowerDNS RecursorEPSS 0.8%