Description
Crafted delegations or IP fragments can poison cached delegations in Recursor.
Scores
CVSS v3
8.2
EPSS
0.0001
EPSS Percentile
0.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-294
Status
published
Products (4)
PowerDNS/Recursor
5.1.0 - 5.1.8
powerdns/recursor
5.1.0 - 5.1.8
PowerDNS/Recursor
5.2.0 - 5.2.6
PowerDNS/Recursor
5.3.0 - 5.3.1
Published
Feb 09, 2026
Tracked Since
Feb 18, 2026