A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service.
Fix
Patch, vendor advisory and mitigation references on NVD 1
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html Broken Link, Vendor Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.9 · powerdnsNVD modified 2026-10-26 21:10
Affected (CPE criteria) 2
cpe:2.3:a:powerdns:recursor:*:*:*:*:*:*:*:*cpe:2.3:a:powerdns:recursor:5.4.0:*:*:*:*:*:*:*
References 1
- https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-powerdns-2026-03.html Broken Link, Vendor Advisory