#VU113094 Acceptance of Extraneous Untrusted Data With Trusted Data in PowerDNS Recursor - CVE-2025-30192

Vulnerability identifier: #VU113094

Vulnerability risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:L/SA:N/E:U/U:Green]

CVE-ID: CVE-2025-30192

CWE-ID: CWE-349

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
PowerDNS Recursor
Server applications / DNS servers

Vendor: PowerDNS.COM B.V.

Description

The vulnerability allows a remote attacker to perform cache poisoning attacks.

The vulnerability exists due to an error in ECS implementation. A remote attacker can spoof answers to ECS enabled requests sent out by the Recursor.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

PowerDNS Recursor: 5.0.0 alpha1, 5.0.0 alpha2, 5.0.0 beta1, 5.0.0 rc1, 5.0.0 rc2, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.0.10, 5.1.0 alpha1, 5.1.0 beta1, 5.1.0 rc1, 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.2.0, 5.2.0 alpha1, 5.2.0 beta1, 5.2.0 rc1, 5.2.1, 5.2.2, 5.3.0 alpha1, 5.3.0 alpha2

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External links
https://docs.powerdns.com/recursor/security-advisories/powerdns-advisory-2025-04.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.