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CVE-2025-59030— Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor

Quick assessment

Affected
PowerDNS Recursor
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

PowerDNS Recursor（pdns_recursor）是荷兰PowerDNS公司的一款域名解析服务器。 PowerDNS Recursor存在安全漏洞，该漏洞源于TCP NOTIFY查询可能导致缓存记录删除。

CVSS 7.5 · High EPSS 0.58% · P46

Possible ATT&CK Techniques 1 AI

T1499.002 · Service Exhaustion Flood
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I. Basic Information for CVE-2025-59030

Vulnerability Information
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Vulnerability Title
Insufficient validation of incoming notifies over TCP can lead to a denial of service in Recursor
Source: CVE Program / CVE List V5
Vulnerability Description
An attacker can trigger the removal of cached records by sending a NOTIFY query over TCP.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
缺省权限不正确
Source: CVE Program / CVE List V5
Vulnerability Title
PowerDNS Recursor 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
PowerDNS Recursor（pdns_recursor）是荷兰PowerDNS公司的一款域名解析服务器。 PowerDNS Recursor存在安全漏洞，该漏洞源于TCP NOTIFY查询可能导致缓存记录删除。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
PowerDNS Recursor 5.3.0 ~ 5.3.3 -

II. Public POCs for CVE-2025-59030

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III. Intelligence Information for CVE-2025-59030

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IV. Related Vulnerabilities

Same product: Recursor
Same vendor: PowerDNS
Same weakness: CWE-276

V. Comments for CVE-2025-59030

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