CVE-2025-30187
Published: Sep 18, 2025
Modified: Nov 4, 2025
CVSS v3.1
3.7
Description
In some circumstances, when DNSdist is configured to use the nghttp2 library to process incoming DNS over HTTPS queries, an attacker might be able to cause a denial of service by crafting a DoH exchange that triggers an unbounded I/O read loop, causing an unexpected consumption of CPU resources.
| Vendor | Product | Versions |
|---|---|---|
PowerDNS | DNSdist | affected 1.9.0 - < 1.9.11affected 2.0.0 - < 2.0.1 |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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