CVE-2026-33261

Summary

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.

Affected Software

VendorProductVersion RangeStatus
PowerDNSRecursor5.4.0 < 5.4.1affected
PowerDNSRecursor5.3.0 < 5.3.6affected
PowerDNSRecursor5.2.0 < 5.2.9affected

Weaknesses

  • Missing Support for Integrity Check

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References