CVE-2026-40208
Denial of service via DoH3 queries
CVSS Score
3.7
EPSS Score
0.0%
EPSS Percentile
0th
An attacker might be able to delay the processing of DoH3 queries by sending DoH3 GET queries with an invalid DATA frame.
| Vendor | powerdns |
| Product | dnsdist |
| Published | Jun 25, 2026 |
| Last Updated | Jun 25, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
PowerDNS / DNSdist
1.9.0 < 1.9.15 2.0.0 < 2.0.7
References
Credits
ylwango613