PowerDNS Recursor up to 5.0.11/5.1.5/5.2.3 ECS data authenticity

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability was found in PowerDNS Recursor up to 5.0.11/5.1.5/5.2.3. It has been declared as critical. Affected by this issue is some unknown functionality of the component ECS. Such manipulation leads to data authenticity. This vulnerability is referenced as CVE-2025-30192. It is possible to launch the attack remotely. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in PowerDNS Recursor up to 5.0.11/5.1.5/5.2.3 and classified as critical. Affected by this issue is some unknown processing of the component ECS. The manipulation with an unknown input leads to a data authenticity vulnerability. Using CWE to declare the problem leads to CWE-345. The product does not sufficiently verify the origin or authenticity of data, in a way that causes it to accept invalid data. Impacted is availability. CVE summarizes:

An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.

The weakness was published by Xiang Li. The advisory is shared for download at docs.powerdns.com. This vulnerability is handled as CVE-2025-30192 since 03/18/2025. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading to version 5.0.12, 5.1.6 or 5.2.4 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Data authenticity
CWE: CWE-345
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Recursor 5.0.12/5.1.6/5.2.4

Timelineinfo

03/18/2025 CVE reserved
07/21/2025 +124 days Advisory disclosed
07/21/2025 +0 days VulDB entry created
07/21/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: docs.powerdns.com
Researcher: Xiang Li
Status: Confirmed

CVE: CVE-2025-30192 (🔒)
GCVE (CVE): GCVE-0-2025-30192
GCVE (VulDB): GCVE-100-317120

Entryinfo

Created: 07/21/2025 17:47
Changes: 07/21/2025 17:47 (64)
Complete: 🔍
Cache ID: 216::103

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