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Alerts This Week
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Debian: pdns-recursor Critical Denial of Service Vulnerability DSA-6077-1

debian
Calendar Grey December 10, 2025
Debian Logo
Inadequate validation in PDNS Recursor poses DoS threats. Immediate upgrade is essential to mitigate these risks and enhance security
Insufficient validation of incoming notifies over TCP in PDNS Recursor, a resolving name server, could result in denial of service

Summary

For the stable distribution (trixie), this problem has been fixed in
version 5.2.7-0+deb13u1.

We recommend that you upgrade your pdns-recursor packages.

For the detailed security status of pdns-recursor please refer to its
security tracker page at:
https://security-tracker.debian.org/tracker/source-package/pdns-recursor

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
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Critical

Package: pdns-recursor
CVE ID: CVE-2025-59030

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