dnsmasq contains several vulnerabilities, including attacker DNS redirect, privilege escalation, and heap manipulation

Overview dnsmasq is affected by multiple memory safety and input validation vulnerabilities, including heap buffer overflows, heap corruption, and code execution flaws. Collectively, these vulnerabilities enable attackers to poison cached DNS records, bypass security controls, crash the dnsmasq...

PT-2026-39699

Name of the Vulnerable Software and Affected Versions dnsmasq affected versions not specified Description A heap-based out-of-bounds read in the DNSSEC validation of dnsmasq allows remote attackers to cause a denial of service by sending a crafted DNS packet. A heap-based out-of-bounds read occur...

Security Bulletin: IBM i is affected by BIND being too lenient accepting records with forged data and consuming excessive CPU when a resolver is performing DNSSEC validation [CVE-2025-40778, CVE-2026-1519].

Summary Domain Name System for IBM i is vulnerable to BIND being too lenient when accepting records from answers allowing an attack to inject forged data into cache CVE-2025-40778, and consuming excessive CPU when a resolver is performing DNSSEC validation and encounters a maliciously crafted zon...

NSEC3 closest-encloser proof validation enters unbounded loop on cross-zone responses

The NSEC3 closest-encloser proof validation in hickory-proto's DnssecDnsHandle walks from the QNAME up to the SOA owner name, building a list of candidate encloser names. The iterator used assumes the QNAME is a descendant of the SOA owner, terminating only when the current candidate equals the S...

OESA-2026-2060 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-2026-2059 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 ...

RHEL 10 : bind (RHSA-2026:8312)

"The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:8312 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...

Oracle Linux 8 : bind9.16 (ELSA-2026-8155)

The remote Oracle Linux 8 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-8155 advisory. 32:9.16.23-0.22.5 - Prevent Denial of Service via maliciously crafted DNSSEC-validated zone CVE-2026-1519 Tenable has extracted the preceding description block...

RHEL 8 : bind9.16 (RHSA-2026:8155)

"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:8155 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...

Important: bind

Issue Overview: If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

Amazon Linux 2 : bind, --advisory ALAS2-2026-3226 (ALAS-2026-3226)

The version of bind installed on the remote host is prior to 9.11.4-26.P2. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3226 advisory. If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive...

DEBIAN-CVE-2026-1519

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

ALPINE-CVE-2026-1519

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

CVE-2026-1519

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

CVE-2026-1519 Excessive NSEC3 iterations cause high CPU load during insecure delegation validation

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

CVE-2026-1519 Excessive NSEC3 iterations cause high CPU load during insecure delegation validation

If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers are generally unaffected, although there are circumstances where authoritative servers may make recursive queries see:...

Linux Distros Unpatched Vulnerability : CVE-2026-1519

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU. Authoritative-only servers...

ISC BIND 9.11.0 < 9.18.47 / 9.11.3-S1 < 9.18.47-S1 / 9.18.0 < 9.18.47 / 9.18.11-S1 < 9.18.47-S1 / 9.20.0 < 9.20.21 / 9.20.9-S1 < 9.20.21-S1 / 9.21.0 < 9.21.20 Vulnerability (cve-2026-1519)

The version of ISC BIND installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the cve-2026-1519 advisory. - If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume...

dnsmasq -- multiple vulnerabilities

Simon Kelley reports: Today, 11th May 2026 CERT is releasing a set of six CVEs for serious security vulnerabilities in dnsmasq. These are all long-standing bugs which apply to pretty much all non-ancient versions. Christopher Cullen and Molly Jaconski write, in Vulnerability Note VU471747:...

USN-7047-1: libvirt vulnerabilities

It was discovered that libvirt parsed user-provided XML files before performing ACL checks. An attacker could possibly use this issue to cause libvirt to consume memory, resulting in a denial of service. CVE-2025-12748 It was discovered that libvirt incorrectly handled permissions on external...