CVE-2026-11605

The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG records causes the validator to...

CVE-2026-11331

An attacker who knows or guesses that a resolver uses RPZ with wildcard CNAME policies can craft query names long enough to trigger a NAMETOOLONG error condition during RPZ processing. This is not handled correctly and may lead to defeating the RPZ rule. It also may lead to an unexpected exit of...

bind: bind9: Unnecessary validation of DNSSEC signed records

The issue is a resource exhaustion vulnerability associated with DNSSEC validation. BIND always validates all RRSIG records in an answer, even if they are not strictly needed. A query to an authoritative server/zone which returns many valid but superfluous RRSIG records causes the validator to...

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...

EulerOS Virtualization 2.13.1 : bind (EulerOS-SA-2026-2366)

According to the versions of the bind packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities : If a BIND resolver is performing DNSSEC validation and encounters a maliciously crafted zone, the resolver may consume excessive CPU...

RLSA-2026:24338 Important: bind security update

The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...

RHEL 8 : bind9.16 (RHSA-2026:25083)

"The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:25083 advisory. The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named %NASLMINLEVEL...

CVE-2026-5947

creationtimestamp| type| source ---|---|--- 2026-05-20 07:42:48+00:00| seen| https://www.acn.gov.it/portale/w/aggiornamenti-per-isc-bind-5 2026-05-20 10:23:00+00:00| seen| https://cyber.gc.ca/en/alerts-advisories/isc-bind-security-advisory-av26-490 2026-05-20 14:24:10+00:00| seen|...

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 ...

ALSA-2026:8352 Important: bind security update

The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...

ISC BIND 9.11.3-S1 < 9.18.38-S1 / 9.18.11-S1 < 9.18.38-S1 / 9.20.9-S1 < 9.20.11-S1 Vulnerability (cve-2025-40776)

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-2025-40776 advisory. - A named caching resolver that is configured to send ECS EDNS Client Subnet options may be vulnerable to a cache-poisoning...

[SECURITY] Fedora 42 Update: bind-9.18.44-1.fc42

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 ...

MiracleLinux 9 : dhcp-4.4.2-17.b1.el9 (AXSA:2023-4748:01)

The remote MiracleLinux 9 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2023-4748:01 advisory. bind: DNS forwarders - cache poisoning vulnerability CVE-2021-25220 Tenable has extracted the preceding description block directly from the MiracleLinux...

MiracleLinux 4 : bind-9.8.2-0.47.2.0.1.rc1.AXS4 (AXSA:2016-710:04)

"The remote MiracleLinux 4 host has packages installed that are affected by a vulnerability as referenced in the AXSA:2016-710:04 advisory. 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 ...

bind: Cache poisoning attacks with unsolicited RRs

A vulnerability exists in BIND’s DNS resolver logic that makes it overly permissive when accepting resource records RRs in responses. Under certain conditions, this flaw allows attackers to inject unsolicited or forged DNS records into the cache. This can be exploited to poison the resolver cache...

[SECURITY] Fedora 42 Update: bind9-next-9.21.14-2.fc42

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 ...

bind: Cache poisoning attacks with unsolicited RRs

A vulnerability exists in BIND’s DNS resolver logic that makes it overly permissive when accepting resource records RRs in responses. Under certain conditions, this flaw allows attackers to inject unsolicited or forged DNS records into the cache. This can be exploited to poison the resolver cache...

[SECURITY] Fedora 43 Update: bind-9.18.41-1.fc43

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 ...

RLSA-2025:19835 Important: bind security update

The Berkeley Internet Name Domain BIND is an implementation of the Domain Name System DNS protocols. BIND includes a DNS server named; a resolver library routines for applications to use when interfacing with DNS; and tools for verifying that the DNS server is operating correctly. Security Fixes:...

PT-2025-29873

Name of the Vulnerable Software and Affected Versions BIND versions 9.20.0 through 9.20.10 BIND versions 9.21.0 through 9.21.9 BIND versions 9.20.9-S1 through 9.20.10-S1 Description If a named caching resolver is configured with serve-stale-enable set to yes, and with stale-answer-client-timeout...