#VU115968 Resource exhaustion in dnsdist - CVE-2025-30187

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Main Vulnerability Database Vulnerabilities #VU115968

#VU115968 Resource exhaustion in dnsdist - CVE-2025-30187

Published: September 19, 2025


Vulnerability identifier: #VU115968
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-30187
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
dnsdist
Software vendor:
PowerDNS.COM B.V.

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the nghttp2 library when handling incoming DNS over HTTPS queries. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


Remediation

Install updates from vendor's website.

External links