CVE Catalog

CVE-2026-33610

MediumCVSS 5.9
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.39%

33th percentile - higher than 33% of all known CVEs

Summary

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.

Risk Assessment

An attacker could cause the DNS service handled by the PowerDNS secondary server to become unavailable, impacting name resolution availability in the organization.

Recommendation

Upgrade PowerDNS to a patched version and consider restricting trust to primary servers and monitoring file descriptor usage.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS