CVE-2026-52863

A flaw was found in Unbound, a validating, recursive, and caching Domain Name System DNS resolver. When configured with specific modules and under heavy load, a memory corruption vulnerability can occur due to improper handling of view names during subquery processing. This issue could lead to a...

SUSE CVE-2026-50243

In NLnet Labs Unbound 1.6.2 up to and including 1.25.1, when Unbound is configured with the 'respip' module in front of the validator together with a 'response-ip' redirect rule or an RPZ file with an RPZ-IP trigger, the rewriting handler does not check the security status of the upstream answer...

CVE-2026-52863

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure...

ALPINE-CVE-2026-52863

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure...

CVE-2026-52863

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure...

CVE-2026-52863 Memory corruption could lead to crash and denial of service

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure...

EUVD-2026-47677

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure...

CVE-2026-52863

In NLnet Labs Unbound 1.25.0 up to and including 1.25.1, a fix that makes the 'respip' and 'dns64' modules work together, creates a shallow copy of the view name in effect that could lead to memory corruption if the owner of the original view name is jostled out when Unbound is under pressure...

CVE-2026-50243

CVE-2026-50243 affects NLnet Labs Unbound 1.6.2 up to 1.25.1. When the respip module is placed in front of the validator and used with a response-ip redirect or RPZ-IP trigger, the rewriting handler does not check the upstream answer’s security status and can rewrite a BOGUS A/AAAA reply to an op...

CVE-2026-50243

In NLnet Labs Unbound 1.6.2 up to and including 1.25.1, when Unbound is configured with the 'respip' module in front of the validator together with a 'response-ip' redirect rule or an RPZ file with an RPZ-IP trigger, the rewriting handler does not check the security status of the upstream answer...

PT-2026-63385

Name of the Vulnerable Software and Affected Versions NLnet Labs Unbound versions 1.25.0 through 1.25.1 Description A memory corruption issue exists when the software is under pressure and configured with an access-control-view and either the respip or rpz modules, alongside a module capable of...

Astra Linux – Vulnerability in unbound

Before version 1.9.5, Unbound allowed for an integer overflow in the size calculation in respip/respip.c. NOTE: The vendor denies that this is a vulnerability. Although the code may be vulnerable, an active Unbound installation cannot be exploited remotely or locally...

SUSE CVE-2019-25039

Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited...

unbound: integer overflow in a size calculation in respip/respip.c

A flaw was found in unbound. An integer overflow in ubpackedrrsetkey function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability...

unbound: integer overflow in a size calculation in respip/respip.c

A flaw was found in unbound. An integer overflow in ubpackedrrsetkey function may lead to a buffer overflow of the allocated buffer if the size can be controlled by an attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability...

DEBIAN-CVE-2019-25039

Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited...

CVE-2019-25039

Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited...

CVE-2019-25039

CVE-2019-25039 affects Unbound before 1.9.5, with an integer overflow in size calculation in respip/respip.c. The vendor disputes this as a vulnerability, and the description notes that a running Unbound installation cannot be remotely or locally exploited. CVSS scores in the entry show: CVSS2 ba...

CVE-2019-25039

Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited...

CVE-2019-25039

Unbound before 1.9.5 allows an integer overflow in a size calculation in respip/respip.c. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited...