Linux Distros Unpatched Vulnerability : CVE-2021-47086

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - phonet/pep: refuse to enable an unbound pipe This ioctl implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. I...

OESA-2025-1974 unbound security update

Unbound is a validating, recursive, caching DNS resolver. It is designed to be fast and lean and incorporates modern features based on open standards. To help increase online privacy, Unbound supports DNS-over-TLS which allows clients to encrypt their communication. Unbound is available for most...

CLSA-2025-1754649153 unbound: Fix of CVE-2025-5994

CVE-2025-5994: fix cache poisoning vulnerability by segregating outgoing queries to accommodate for different outgoing ECS information...

Important: unbound

Issue Overview: A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS support, i.e., '--enable-subnet', AND configured to send ECS information along wit...

[SECURITY] Fedora 41 Update: unbound-1.23.1-1.fc41

Unbound is a validating, recursive, and caching DNSSEC resolver. The C implementation of Unbound is developed and maintained by NLnet Labs. It is based on ideas and algorithms taken from a java prototype developed by Verisign labs, Nominet, Kirei and ep.net. Unbound is designed as a set of modula...

Fedora 41 : unbound (2025-e262093d58)

The remote Fedora 41 host has a package installed that is affected by a vulnerability as referenced in the FEDORA-2025-e262093d58 advisory. Update to 1.23.1 rhbz2380450 Tenable has extracted the preceding description block directly from the Fedora security advisory. Note that Nessus has not teste...

Linux Distros Unpatched Vulnerability : CVE-2025-5994

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is...

Fedora: Security Advisory (FEDORA-2025-e262093d58)

The remote host is missing an update for the SPDX-FileCopyrightText: 2025 Greenbone AG Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only ifdescription...

RHSA-2025:12929 Red Hat Security Advisory: unbound security update

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RHSA-2025:12523 Red Hat Security Advisory: unbound security update

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RHSA-2025:12520 Red Hat Security Advisory: unbound security update

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unbound: Unbound Cache poisoning

A cache poisoning flaw was found in Unbound. Resolvers supporting EDNS Client Subnet ECS must segregate outgoing queries to accommodate different outgoing ECS information. This issue reopens resolvers to a birthday paradox attack, known as the Rebirthday Attack, which attempts to match the DNS...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions and Red Hat Enterprise Linux 8.8 Telecommunications Update Service. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring...

RHEL 8 : unbound (RHSA-2025:12929)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:12929 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound Cache poisoning...

unbound: Unbound Cache poisoning

A cache poisoning flaw was found in Unbound. Resolvers supporting EDNS Client Subnet ECS must segregate outgoing queries to accommodate different outgoing ECS information. This issue reopens resolvers to a birthday paradox attack, known as the Rebirthday Attack, which attempts to match the DNS...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

unbound: Unbound Cache poisoning

A cache poisoning flaw was found in Unbound. Resolvers supporting EDNS Client Subnet ECS must segregate outgoing queries to accommodate different outgoing ECS information. This issue reopens resolvers to a birthday paradox attack, known as the Rebirthday Attack, which attempts to match the DNS...

Important: Red Hat Security Advisory: unbound security update

An update for unbound is now available for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

Amazon Linux 2023 : python3-unbound, unbound, unbound-anchor (ALAS2023-2025-1122)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2025-1122 advisory. A multi-vendor cache poisoning vulnerability named 'Rebirthday Attack' has been discovered in caching resolvers that support EDNS Client Subnet ECS. Unbound is also vulnerable when compiled with ECS...

RHEL 9 : unbound (RHSA-2025:12523)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2025:12523 advisory. The unbound packages provide a validating, recursive, and caching DNS or DNSSEC resolver. Security Fixes: unbound: Unbound Cache poisoning...