Red Hat Enterprise Linux (MUNGE): Schwachstelle ermöglicht Privilegieneskalation
WID-SEC-2026-0448 · first 18.02.2026 · updated 25.02.2026 · CVSS 7,7
What it is about
Red Hat Enterprise Linux (RHEL) ist eine populäre Linux-Distribution. Ein lokaler Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux bezüglich "MUNGE" ausnutzen, um seine Privilegien zu erhöhen.
Under what conditions?
Only with access to the device or an account on it. Often the second step after a phishing email.
What can happen in the worst case
An attacker could use the vulnerability to
- seine Privilegien zu erhöhen
Am I affected?
Affected according to the BSI:
- Red Hat Enterprise Linux
- Oracle Linux
- RESF Rocky Linux
- Red Hat Enterprise Linux 9.6 Extended Update Support
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-2026:2918 vom 2026-02-17 access.redhat.com
- Red Hat Security Advisory RHSA-2026:2934 vom 2026-02-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:2949 vom 2026-02-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:2923 vom 2026-02-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:2954 vom 2026-02-18 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3010 vom 2026-02-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3011 vom 2026-02-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3012 vom 2026-02-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3013 vom 2026-02-19 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3032 vom 2026-02-23 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3033 vom 2026-02-23 access.redhat.com
- Red Hat Security Advisory RHSA-2026:3034 vom 2026-02-23 access.redhat.com
- Oracle Linux Security Advisory ELSA-2026-3033 vom 2026-02-24 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-3032 vom 2026-02-24 linux.oracle.com
- Oracle Linux Security Advisory ELSA-2026-3034 vom 2026-02-24 linux.oracle.com
- Rocky Linux Security Advisory RLSA-2026:3034 vom 2026-02-24 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:3032 vom 2026-02-24 errata.build.resf.org
- Rocky Linux Security Advisory RLSA-2026:3033 vom 2026-02-24 errata.build.resf.org
CVE: CVE-2026-25506
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.