Description
A rogue backend can send a crafted SVCB response to a Discovery of Designated Resolvers request, when requested via either the autoUpgrade (Lua) option to newServer or auto_upgrade (YAML) settings. DDR upgrade is not enabled by default.
Scores
CVSS v3
3.1
EPSS
0.0001
EPSS Percentile
0.5%
Attack Vector
ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-125
Status
published
Products (3)
PowerDNS/DNSdist
1.9.0 - 1.9.13
powerdns/dnsdist
1.9.0 - 1.9.13
PowerDNS/DNSdist
2.0.0 - 2.0.4
Published
Apr 22, 2026
Tracked Since
Apr 22, 2026