SB2025072136 - DNS cache poisoning in PowerDNS Recursor
Published: July 21, 2025
Security Bulletin ID
SB2025072136
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Acceptance of Extraneous Untrusted Data With Trusted Data (CVE-ID: CVE-2025-30192)
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.
Remediation
Install update from vendor's website.