Description
An attacker can send replies that result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service. Cookies are disabled by default.
Scores
CVSS v3
5.9
EPSS
0.0001
EPSS Percentile
0.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-476
Status
published
Products (5)
powerdns/recursor
5.4.0
PowerDNS/Recursor
5.2.0 - 5.2.9
powerdns/recursor
5.2.0 - 5.2.9
PowerDNS/Recursor
5.3.0 - 5.3.6
PowerDNS/Recursor
5.4.0 - 5.4.1
Published
Apr 22, 2026
Tracked Since
Apr 22, 2026