Debian Linux - dnsdist - None

pdns - None

pdns-recursor - None

Ubuntu Linux - [A crafted DNS packet can cause increased memory and CPU consumption]

The remote Debian 13 host has a package installed that is affected by a vulnerability as referenced in the dsa-6419 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6419-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     August 08, 2026                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : dnsdist     CVE ID         : CVE-2026-52682

    A vulnerability was discovered in the dnsdist DNS loadbalancer, which     may result in denial of service (increased memory and CPU usage) when     processing a specially crafted DNS packet.

    For the stable distribution (trixie), this problem has been fixed in     version 1.9.16-0+deb13u1.

    We recommend that you upgrade your dnsdist packages.

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

    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/

    Mailing list: debian-security-announce@lists.debian.org

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

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

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6420 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6420-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     August 08, 2026                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : pdns     CVE ID         : CVE-2026-52682

    A vulnerability was discovered in PowerDNS Authoritative server     (pdns), which may result in denial of service (increased memory and     CPU usage) when processing a specially crafted DNS packet.

    For the stable distribution (trixie), this problem has been fixed in     version 4.9.17-0+deb13u1.

    We recommend that you upgrade your pdns packages.

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

    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/

    Mailing list: debian-security-announce@lists.debian.org

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

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

The remote Debian 13 host has a package installed that is affected by a vulnerability as referenced in the dsa-6421 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6421-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     August 08, 2026                       https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : pdns-recursor     CVE ID         : CVE-2026-52682

    A vulnerability was discovered in PowerDNS Recursor (pdns-recursor), a     resolving name server, which may result in denial of service (increased     memory and CPU usage) when processing a specially crafted DNS packet.

    For the stable distribution (trixie), this problem has been fixed in     version 5.2.13-0+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/

    Mailing list: debian-security-announce@lists.debian.org

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

Note that Nessus has not tested for this issue 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 a vulnerability as referenced in the 7e45952f-9268-11f1-ab2f-3c7c3fba4204 advisory.

    CVE-2026-52682: A crafted DNS packet can cause increased memory and CPU consumption.

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.

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

  CVE-2026-52682


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

  - CVE-2026-52682: A crafted DNS packet can cause increased memory and CPU consumption. (CVE-2026-52682)

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

ID	Name	Product	Family	Type	Severity
333531	Debian dsa-6419 : dnsdist - security update	Nessus	Debian Local Security Checks	Local	high
333530	Debian dsa-6420 : pdns-backend-bind - security update	Nessus	Debian Local Security Checks	Local	high
333529	Debian dsa-6421 : pdns-recursor - security update	Nessus	Debian Local Security Checks	Local	high
333498	FreeBSD : DNSDist, PowerDNS, PowerDNS Recursor -- vulnerability (7e45952f-9268-11f1-ab2f-3c7c3fba4204)	Nessus	FreeBSD Local Security Checks	Local	high
445792	Alpine: multiple pdns packages: security update to 5.0.7-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	high
445792	Alpine: multiple pdns packages: security update to 5.0.7-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	high
445791	Alpine: multiple pdns-recursor packages: security update to 5.4.5-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	high
445791	Alpine: multiple pdns-recursor packages: security update to 5.4.5-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	high
445790	Alpine: multiple dnsdist packages: security update to 2.0.8-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	Local	high
445790	Alpine: multiple dnsdist packages: security update to 2.0.8-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	Local	high
333190	Linux Distros Unpatched Vulnerability : CVE-2026-52682	Nessus	Misc.	Local	high

Detections

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CVE-2026-52682

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