Findings

CVE-2026-33601

If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing c…

Published Apr 22, 2026 · updated Jun 17, 2026 · powerdns recursor

If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 22, 2026 · NIST NVD

    Detected

    If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

  2. Jun 17, 2026 · NIST NVD

    Updated

    If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

Affected

  • cpe powerdns/recursorversion unspecified
  • cpe powerdns/recursor5.4.0

Sources

  • CVE.orgVulnerability recordCVE-2026-33601

    Official CVE identifier

    cve.org
  • NIST NVDVulnerability recordCVE-2026-33601

    If you use the zoneToCache function with a malicious authoritative server, an attacker can send a zone that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service.

    nvd.nist.gov

References