An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success higher than non-ECS enabled queries. The updated version include various mitigations against spoofing attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old style name edns-subnet-harden) is enabled.

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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success
    higher than non-ECS enabled queries. The updated version include various mitigations against spoofing
    attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the
    received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old
    style name edns-subnet-harden) is enabled. (CVE-2025-30192)

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

  - An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success     higher than non-ECS enabled queries. The updated version include various mitigations against spoofing     attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the     received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old     style name edns-subnet-harden) is enabled. (CVE-2025-30192)

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

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - An attacker spoofing answers to ECS enabled requests sent out by the Recursor has a chance of success
    higher than non-ECS enabled queries. The updated version include various mitigations against spoofing
    attempts of ECS enabled queries by chaining ECS enabled requests and enforcing stricter validation of the
    received answers. The most strict mitigation done when the new setting outgoing.edns_subnet_harden (old
    style name edns-subnet-harden) is enabled. (CVE-2025-30192)

  - Crafted delegations or IP fragments can poison cached delegations in Recursor. (CVE-2025-59023,
    CVE-2025-59024)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the b3948bf3-685e-11f0-bff5-6805ca2fa271 advisory.

    PowerDNS Team reports:
    An attacker spoofing answers to ECS enabled requests               sent out by the Recursor has a chance of success higher               than non-ECS enabled queries. The updated version include               various mitigations against spoofing attempts of ECS enabled               queries by chaining ECS enabled requests and enforcing               stricter validation of the received answers. The most strict               mitigation done when the new setting outgoing.edns_subnet_harden               (old style name edns-subnet-harden) is enabled.

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

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

ID	Name	Product	Family	Severity
306060	Fedora 42 : pdns-recursor (2026-2490896a5d)	Nessus	Fedora Local Security Checks	high
436387	Alpine: multiple pdns-recursor packages: security update to 5.2.2-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
436387	Alpine: multiple pdns-recursor packages: security update to 5.2.2-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
260492	Linux Distros Unpatched Vulnerability : CVE-2025-30192	Nessus	Misc.	high
428719	Alpine: multiple pdns-recursor packages: security update to 5.2.5-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	high
428719	Alpine: multiple pdns-recursor packages: security update to 5.2.5-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	high
242928	FreeBSD : powerdns-recursor -- cache pollution (b3948bf3-685e-11f0-bff5-6805ca2fa271)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2025-30192

high

Tenable Plugins

high

high

high

high

high

high

high