An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be inserted into the records cache, then send a query with qtype set to ANY.

The remote Fedora 43 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-9c582575e5 advisory.

    Update to latest 5.2 release, fixing multiple security issues

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Fedora 42 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-2490896a5d advisory.

    Update to latest 5.2 release, fixing multiple security issues

Tenable has extracted the preceding description block directly from the Fedora security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 67793feb-0b5b-11f1-a1c0-0050569f0b83 advisory.

    PowerDNS Team reports:
    2025-07: Internal logic flaw in cache management can lead to             a denial of service in Recursor     2025-08: Insufficient validation of incoming notifies over             TCP can lead to a denial of service in Recursor     2026-01: Crafted zones can lead to increased resource usage in Recursor     2026-01: This problem can be triggered by publishing and querying a crafted             zone that causes large memory usage.

Tenable has extracted the preceding description block directly from the FreeBSD security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - An attacker can trigger an assertion failure by requesting crafted DNS records, waiting for them to be     inserted into the records cache, then send a query with qtype set to ANY. (CVE-2025-59029)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
306072	Fedora 43 : pdns-recursor (2026-9c582575e5)	Nessus	Fedora Local Security Checks	high
306060	Fedora 42 : pdns-recursor (2026-2490896a5d)	Nessus	Fedora Local Security Checks	high
299351	FreeBSD : powerdns-recursor -- Denial of Service (67793feb-0b5b-11f1-a1c0-0050569f0b83)	Nessus	FreeBSD Local Security Checks	high
277741	Linux Distros Unpatched Vulnerability : CVE-2025-59029	Nessus	Misc.	medium

Detections

Analytics

CVE-2025-59029

medium

Tenable Plugins

high

high

high

medium