Red Hat Enterprise Linux (libsolv, aardvark-dns): Mehrere Schwachstellen
WID-SEC-2026-2247 · first 09.07.2026 · updated 15.10.2026 · CVSS 7,8
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um einen Denial of Service Angriff durchzuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
Under what conditions?
The BSI does not name any particular preconditions.
What can happen in the worst case
An attacker could use the vulnerability to
- einen Denial of Service Angriff durchzuführen
- Daten zu manipulieren oder vertrauliche Informationen offenzulegen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- Oracle Linux
- Red Hat OpenShift Container Platform
- RESF Rocky Linux
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 10
The installed version is usually shown under “Help → About” or in the device’s admin interface.
What helps?
Install the updates provided by the vendor; details in the sources below.
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)
- Red Hat Security Advisory RHSA-2026:36730 vom 2026-07-08 access.redhat.com
- Red Hat Security Advisory RHSA-2026:36782 vom 2026-07-08 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-36730 vom 2026-07-09 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:36782 vom 2026-07-10 errata.build.resf.org
- Red Hat Security Advisory RHSA-2026:39315 vom 2026-07-15 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-39315 vom 2026-07-15 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:39315 vom 2026-07-15 errata.build.resf.org
- Oracle Linux Security Advisory ELSA-2026-28236 vom 2026-07-17 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-36782 vom 2026-07-22 oss.oracle.com
- Red Hat Security Advisory RHSA-2026:44481 vom 2026-07-23 access.redhat.com
- Red Hat Security Advisory RHSA-2026:46836 vom 2026-07-27 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48151 vom 2026-07-29 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48811 vom 2026-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48817 vom 2026-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48813 vom 2026-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48816 vom 2026-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48815 vom 2026-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48814 vom 2026-07-30 access.redhat.com
- Red Hat Security Advisory RHSA-2026:48818 vom 2026-07-31 access.redhat.com
- Red Hat Security Advisory RHSA-2026:49775 vom 2026-08-03 access.redhat.com
- Red Hat Security Advisory RHSA-2026:50223 vom 2026-08-04 access.redhat.com
- Red Hat Security Advisory RHSA-2026:53371 vom 2026-08-11 access.redhat.com
- Red Hat Security Advisory RHSA-2026:57402 vom 2026-08-26 access.redhat.com
- Red Hat Security Advisory RHSA-2026:56911 vom 2026-08-31 access.redhat.com
- Red Hat Security Advisory RHSA-2026:60019 vom 2026-09-03 access.redhat.com
and 3 more sources in the original advisory
CVE: CVE-2026-35406, CVE-2026-48864
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.