Linux Distros Unpatched Vulnerability : CVE-2026-42959

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - NLnet Labs Unbound up to and including version 1.25.0 has a denial of service vulnerability in the DNSSEC validator that can lead to a crash given malicious...

dnsmasq: NSEC bitmap parsing infinite loop

A denial of service vulnerability was discovered in dnsmasq's DNSSEC validation. When parsing NSEC and NSEC3 bitmap records, the window iteration logic fails to account for the 2-byte window header when advancing through the bitmap data. A specially crafted DNS response with a zero-length bitmap...

MGASA-2026-0152 Updated bind packages fix security vulnerabilities

It was discovered that bind contained a vulnerability where a Malformed BRID/HHIT record can cause named to terminate unexpectedly CVE-2025-13878. If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-on...

Important: Red Hat Security Advisory: bind security update

An update for bind is now available for Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support and Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability...

bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone

A flaw was found in BIND. A remote attacker could exploit this vulnerability by sending a maliciously crafted DNSSEC-validated zone to a BIND resolver. This could cause the resolver to consume excessive CPU resources, leading to a denial of service DoS for legitimate users...

ALPINE-CVE-2026-4890

A Denial of Service DoS vulnerability in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service via a crafted DNS packet...

CVE-2026-4891

CVE-2026-4891 is a heap-based out-of-bounds read in dnsmasq’s DNSSEC validation that enables remote DoS via a crafted DNS packet. Affected: dnsmasq; root cause: DNSSEC validation path leads to OOB read. Impact: denial of service with no confidentiality/integrity impact reported; exploitation deta...

DNSmasq 安全漏洞

DNSmasq is a DNS configuration tool developed by Simon Kelley. DNSmasq has a security vulnerability, which stems from an issue with DNSSEC verification. This vulnerability allows remote attackers to cause denial-of-service attacks through specially crafted DNS packets...

EUVD-2026-27444

CoreDNS is a DNS server that chains plugins. In versions prior to 1.14.3, the tsig plugin can be bypassed on non-plain-DNS transports DoT, DoH, DoH3, DoQ, and gRPC because it trusts the transport writer's TsigStatus instead of performing verification itself. The DoH and DoH3 writer's TsigStatus...

CLSA-2026-1777541752 bind: Fix of CVE-2026-1519

CVE-2026-1519: limit NSEC3 iteration count when proving an insecure delegation so a maliciously crafted DNSSEC zone with a high-iteration NSEC3 record cannot exhaust resolver CPU; treat the answer as insecure above the 150-iteration limit. Backport of bind-9.11.36-16.el810.7 RHSA-2026:8352...

RHEL 6 : bind (RHSA-2026:11372)

"The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:11372 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...

OESA-2026-2059 bind security update

BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Name System protocols. BIND includes a DNS server named, which resolves host names to IP addresses; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server ...

OESA-2026-2061 bind security update

BIND Berkeley Internet Name Domain is an implementation of the DNS Domain Name System protocols. BIND includes a DNS server named, which resolves host names to IP addresses; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server ...

CVE-2026-33261

A zone transition from NSEC to NSEC3 might trigger an internal inconsistency and cause a denial of service...

UBUNTU-CVE-2026-33600

An RPZ sent by a malicious authoritative server can result in a null pointer dereference, caused by a missing consistency check and leading to a denial of service...

CVE-2026-33258 Crafted zones can cause increased resource usage

By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC3 caches...

PT-2026-34322

By publishing and querying a crafted zone an attacker can cause allocation of large entries in the negative and aggressive NSEC3 caches...

SUSE-SU-2026:21204-1 Security update for bind

This update for bind fixes the following issues: - Update to release 9.20.21 - CVE-2026-1519: maliciously crafted DNSSEC-validated zone can lead to denial of service bsc1260805. - CVE-2026-3104: memory leak in code preparing DNSSEC proofs of non-existence allows for DoS bsc1260567. - CVE-2026-311...

AlmaLinux 10 : bind (ALSA-2026:8312)

The remote AlmaLinux 10 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:8312 advisory. bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone CVE-2026-1519 Tenable has extracted the preceding description block directly from the...

AlmaLinux 8 : bind9.16 (ALSA-2026:8155)

The remote AlmaLinux 8 host has packages installed that are affected by a vulnerability as referenced in the ALSA-2026:8155 advisory. bind: BIND: Denial of Service via maliciously crafted DNSSEC-validated zone CVE-2026-1519 Tenable has extracted the preceding description block directly from the...