RHEL 9 : unbound (RHSA-2026:71611)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:71611 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Heap buffer overflow and...

unbound security update

1.24.2-3.8 - Prevent heap corruption during CNAME synthesis CVE-2026-82717 1.24.2-3.7 - Prevent heap buffer overflow when digesting DNSKEY CVE-2026-81642 - Prevent heap buffer overflow during DNSSEC canonicalization CVE-2026-81634 - Add unit tests for vulnerabilities too...

AlmaLinux 10 : unbound (ALSA-2026:71419)

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:71419 advisory. unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC...

RHEL 9 : unbound (RHSA-2026:71487)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:71487 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code...

RockyLinux 8 : unbound (RLSA-2026:70754)

The remote RockyLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:70754 advisory. unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC...

RHEL 10 : unbound (RHSA-2026:71419)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:71419 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code...

RHEL 10 : unbound (RHSA-2026:71459)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:71459 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Heap buffer overflow an...

AlmaLinux 8 : unbound (ALSA-2026:70754)

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:70754 advisory. unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC...

RHEL 9 : unbound (RHSA-2026:71610)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:71610 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Heap buffer overflow and...

unbound security update

1.16.2-5.14.4 - Prevent heap corruption during CNAME synthesis CVE-2026-82717 1.16.2-5.14.3 - Prevent heap buffer overflow when digesting DNSKEY CVE-2026-81642 - Prevent heap buffer overflow during DNSSEC canonicalization CVE-2026-81634 - Add unit tests for vulnerabilities too...

unbound security update

1.24.2-23 - Prevent heap corruption during CNAME synthesis CVE-2026-82717 1.24.2-22 - Prevent heap buffer overflow during DNSSEC canonicalization CVE-2026-81634 1.24.2-21 - Prevent heap buffer overflow when digesting DNSKEY CVE-2026-81642 - Add unit test for the vulnerability too...

ALSA-2026:71419 Critical: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC response CVE-2026-81634 unbound: Unbound:...

ALSA-2026:71487 Critical: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC response CVE-2026-81634 unbound: Unbound:...

unbound: Unbound: Heap buffer overflow and possible Remote Code Execution when digesting DNSKEY

A flaw was found in Unbound's DNSSEC validator. A remote attacker can exploit this vulnerability by controlling a malicious zone and sending a specially crafted DNSKEY record. This can lead to a heap buffer overflow, potentially resulting in a denial of service or remote code execution...

ALSA-2026:70754 Critical: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC response CVE-2026-81634 unbound: Unbound:...

Critical: unbound security update

The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code Execution Vulnerability in CNAME Synthesis CVE-2026-82717 unbound: Unbound: Heap buffer overflow via malicious DNSSEC response CVE-2026-81634 unbound: Unbound:...

RHEL 8 : unbound (RHSA-2026:70754)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:70754 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound: Remote Code...

Exploit for CVE-2026-81642

CVE-2026-81642 — Unbound DNSKEY digest heap overflow tracking...

Amazon Linux 2 : unbound (ALAS-2026-3928)

The version of unbound installed on the remote host is prior to 1.7.3-15. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3928 advisory. In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in the DNSSEC validator that enables denial of service...

Amazon Linux 2023 : python3-unbound, unbound, unbound-anchor (ALAS2023-2026-3101)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2026-3101 advisory. In NLnet Labs Unbound up to and including 1.26.0, a vulnerability was found in the DNSSEC validator that enables denial of service and possible remote code execution as a result of digesting DNSKEYs. A...