Alerts This Week
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Alerts This Week
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Debian PDNS Recursor Critical Denial Of Service Issues DSA-6369-1

debian
Calendar Grey June 25, 2026
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Multiple vulnerabilities in PDNS Recursor fixed in Debian Trixie to prevent denial of service and more. Upgrade recommended.
Multiple vulnerabiliites have been discovered in PDNS Recursor, a resolving name server which could result in denial of service, cache poisoning or information disclosure
Topics%20covered

Topics Covered

security advisory denial of service critical debian cache poisoning information disclosure

Summary

For the stable distribution (trixie), these problems have been fixed in
version 5.2.11-0+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/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
High
Critical

Package: pdns-recursor
CVE ID: CVE-2026-33612 CVE-2026-40012 CVE-2026-42005

Topics%20covered

Topics Covered

security advisory denial of service critical debian cache poisoning information disclosure

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