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.

INFO

Published Date :

2025-09-18T09:21:32.274Z

Last Modified :

2025-11-04T21:09:56.609Z

Source :

OX
AFFECTED PRODUCTS

The following products are affected by CVE-2025-30187 vulnerability.

Vendors Products
Powerdns
  • Dnsdist
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-30187.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact