CVE-2026-24027: Crafted zones can lead to increased incoming network traffic

Published Feb 9, 2026
·
Updated

Crafted zones can lead to increased incoming network traffic.

Affected Software

3 affected components
PowerDNS recursor>=5.1.0<5.1.10
PowerDNS recursor>=5.2.0<5.2.8
PowerDNS recursor>=5.3.0<5.3.5

Event History

Feb 9, 2026
CVE Published
via MITRE·02:25 PM
Data Sourced
via MITRE·02:25 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·03:16 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-24027?

CVE-2026-24027 has been classified as a high severity vulnerability due to the potential for increased incoming network traffic.

2

How do I fix CVE-2026-24027?

To fix CVE-2026-24027, you should upgrade PowerDNS recursor to version 5.1.10 or later in the 5.1.x series, 5.2.8 or later in the 5.2.x series, or 5.3.5 or later in the 5.3.x series.

3

What kind of impact does CVE-2026-24027 have on affected systems?

CVE-2026-24027 can lead to increased incoming network traffic, potentially overwhelming the affected systems.

4

Which versions of PowerDNS recursor are affected by CVE-2026-24027?

CVE-2026-24027 affects PowerDNS recursor versions from 5.1.0 to 5.1.10, from 5.2.0 to 5.2.8, and from 5.3.0 to 5.3.5.

5

Is there a way to mitigate the risks associated with CVE-2026-24027 without upgrading?

Mitigation strategies may include implementing network rate limiting and traffic analysis, but upgrading is the recommended solution to fully address CVE-2026-24027.

Contact

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