CVE-2026-33261

EUVD-2026-24727
A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.9 MEDIUM
NETWORK
HIGH
NONE
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
powerdnsrecursor
5.2.0 ≤
𝑥
< 5.2.9
powerdnsrecursor
5.3.0 ≤
𝑥
< 5.3.6
powerdnsrecursor
5.4.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html