CVE-2026-33261
Null pointer accces in aggressive NSEC(3) cache
CVSS Score
5.9
EPSS Score
0.0%
EPSS Percentile
0th
A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.
| Vendor | powerdns |
| Product | recursor |
| Published | Apr 22, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
PowerDNS / Recursor
5.4.0 < 5.4.1 5.3.0 < 5.3.6 5.2.0 < 5.2.9
References
Credits
ylwango613