Internet Systems Consortium BIND: Mehrere Schwachstellen
WID-SEC-2026-3420 · first 17.09.2026 · updated 29.10.2026 · CVSS 7,5
What it is about
BIND (Berkeley Internet Name Domain) ist ein Open-Source-Softwarepaket, das einen Domain-Name-System-Server implementiert. Ein entfernter Angreifer kann mehrere Schwachstellen in Internet Systems Consortium BIND ausnutzen, um Daten zu manipulieren, Sicherheitsmaßnahmen zu umgehen oder Denial-of-Service-Zustände herbeizuführen.
Under what conditions?
Over the network.
What can happen in the worst case
An attacker could use the vulnerability to
- Daten zu manipulieren
- Sicherheitsmaßnahmen zu umgehen oder Denial-of-Service-Zustände herbeizuführen
Am I affected?
Affected according to the BSI:
- Debian Linux
- Amazon Linux 2
- Red Hat Enterprise Linux
- Fedora Linux
- Infoblox NIOS
- RESF Rocky Linux
- SUSE Linux
- SUSE openSUSE
- Ubuntu Linux
- Oracle Linux
- Internet Systems Consortium BIND <9.21.26
- Internet Systems Consortium BIND <9.20.29
and 1 more
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Update to at least:
- Internet Systems Consortium BIND 9.21.26
- Internet Systems Consortium BIND 9.20.29
Is the vulnerability already being exploited?
None of the CVEs is in the CISA catalogue of exploited vulnerabilities. That does not mean there are no attacks, only that none are documented.
Information and sources
- Original BSI advisory (WID)
- OSS Security Mailing List vom 2026-09-16 seclists.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- ISC Vulnerability vom 2026-09-16 kb.isc.org
- Infoblox Security Alert vom 2026-09-16 support.infoblox.com
- Debian Security Advisory DSA-6505 vom 2026-09-17 security-tracker.debian.org
- SUSE Security Update SUSE-SU-2026:4285-1 vom 2026-09-23 lists.suse.com
- openSUSE Security Update OPENSUSE-SU-2026:11916-1 vom 2026-10-03 lists.opensuse.org
- Oracle Linux Security Advisory ELSA-2026-75577 vom 2026-10-05 oss.oracle.com
- Rocky Linux Security Advisory RLSA-2026:75767 vom 2026-10-06 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:75577 vom 2026-10-05 access.redhat.com
- Red Hat Security Advisory RHSA-2026:75578 vom 2026-10-05 access.redhat.com
- Red Hat Security Advisory RHSA-2026:75767 vom 2026-10-05 access.redhat.com
- Rocky Linux Security Advisory RLSA-2026:75578 vom 2026-10-06 errata.build.resf.org
and 38 more sources in the original advisory
CVE: CVE-2026-19033, CVE-2026-19662, CVE-2026-19666, CVE-2026-19667, CVE-2026-19668, CVE-2026-19941, CVE-2026-75029, CVE-2026-76163, CVE-2026-77119, CVE-2026-77692, CVE-2026-78301, CVE-2026-80274, CVE-2026-81563, CVE-2026-81736
Source: BSI warning and information service (CERT-Bund); CISA. The assessment of the conditions is my reading of the BSI text; the external pages are in their original language.